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 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ r e c o m p u t e _ p i v o t   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ s w a p _ i n _ t w i c e   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ 3 x 5   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ l o c a l _ r i n g   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ 4 x 6   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ n o _ f i e l d   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s   . . .   F A I L E D 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ g b _ s p a r s e _ r o w _ e c h e l o n _ l a r g e   . . .   o k 
 
 t e s t   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e   . . .   F A I L E D 
 
 
 
 f a i l u r e s : 
 
 
 
 - - - -   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s   s t d o u t   - - - - 
 
 t h r e a d   ' a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s '   p a n i c k e d   a t   s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 1 3 2 8 : 5 : 
 
 a s s e r t i o n   ` l e f t   = =   r i g h t `   f a i l e d 
 
     l e f t :   3 
 
   r i g h t :   2 
 
 s t a c k   b a c k t r a c e : 
 
       0 :   s t d : : p a n i c k i n g : : b e g i n _ p a n i c _ h a n d l e r 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ s t d \ s r c \ p a n i c k i n g . r s : 6 4 7 
 
       1 :   c o r e : : p a n i c k i n g : : p a n i c _ f m t 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 7 2 
 
       2 :   c o r e : : p a n i c k i n g : : a s s e r t _ f a i l e d _ i n n e r 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 3 4 2 
 
       3 :   c o r e : : p a n i c k i n g : : a s s e r t _ f a i l e d < u s i z e , u s i z e > 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 \ l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 2 9 7 
 
       4 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 1 3 2 8 
 
       5 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s : : c l o s u r e $ 0 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 1 3 1 9 
 
       6 :   c o r e : : o p s : : f u n c t i o n : : F n O n c e : : c a l l _ o n c e < f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s : : c l o s u r e _ e n v $ 0 , t u p l e $ < >   > 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 \ l i b r a r y \ c o r e \ s r c \ o p s \ f u n c t i o n . r s : 2 5 0 
 
       7 :   c o r e : : o p s : : f u n c t i o n : : F n O n c e : : c a l l _ o n c e 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ o p s \ f u n c t i o n . r s : 2 5 0 
 
 n o t e :   S o m e   d e t a i l s   a r e   o m i t t e d ,   r u n   w i t h   ` R U S T _ B A C K T R A C E = f u l l `   f o r   a   v e r b o s e   b a c k t r a c e . 
 
 
 
 - - - -   a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e   s t d o u t   - - - - 
 
 T r a n s f o r m   t w o   1 ,   3 
 
 T r a n s f o r m   t w o   3 ,   4 
 
 T r a n s f o r m   t w o   4 ,   5 
 
 T r a n s f o r m   t w o   5 ,   9 
 
 T r a n s f o r m   t w o   6 ,   1 0 
 
 T r a n s f o r m   t w o   7 ,   1 1 
 
 T r a n s f o r m   t w o   8 ,   1 2 
 
 T r a n s f o r m   t w o   9 ,   1 3 
 
 T r a n s f o r m   t w o   1 0 ,   1 4 
 
 T r a n s f o r m   t w o   1 1 ,   1 3 
 
 T r a n s f o r m   t w o   1 2 ,   1 5 
 
 T r a n s f o r m   t w o   1 3 ,   1 6 
 
 T r a n s f o r m   t w o   1 4 ,   1 7 
 
 T r a n s f o r m   t w o   1 5 ,   1 8 
 
 T r a n s f o r m   t w o   1 6 ,   2 0 
 
 T r a n s f o r m   t w o   1 7 ,   1 9 
 
 T r a n s f o r m   t w o   1 8 ,   2 1 
 
 T r a n s f o r m   t w o   1 9 ,   2 2 
 
 T r a n s f o r m   t w o   2 0 ,   2 3 
 
 T r a n s f o r m   t w o   2 1 ,   2 4 
 
 T r a n s f o r m   t w o   2 2 ,   2 5 
 
 T r a n s f o r m   t w o   2 3 ,   2 6 
 
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 
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 
 T r a n s f o r m   t w o   2 6 ,   2 9 
 
 T r a n s f o r m   t w o   2 7 ,   3 1 
 
 [ " ( 0 ,   1 ) " ,   " ( 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 1 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   1 ) " ,   " ( 1 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 ,   1 ) " ,   " ( 2 ,   4 ) " ,   " ( 1 0 ,   1 ) " ,   " ( 1 1 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 5 ,   1 2 ) " ,   " ( 1 8 ,   1 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 5 ,   1 ) " ,   " ( 2 0 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 6 ,   1 ) " ,   " ( 2 4 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 7 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 8 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 0 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 7 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 0 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 3 ,   1 ) " ,   " ( 2 4 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 4 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 5 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 6 ,   6 ) " ,   " ( 2 7 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 
 
 [ " ( 0 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 5 ,   1 ) " ,   " ( 2 0 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 6 ,   1 ) " ,   " ( 2 4 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 7 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 8 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 0 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 1 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 2 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 3 ,   1 ) " ,   " ( 2 4 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 4 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 5 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 6 ,   6 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 
 
 [ " ( 0 ,   1 ) " ,   " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   1 2 ) " ,   " ( 3 ,   1 ) " ,   " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 ,   1 ) " ,   " ( 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 5 ,   1 ) " ,   " ( 9 ,   4 ) " ,   " ( 2 1 ,   1 5 ) " ,   " ( 2 3 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 0 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
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 
 [ " ( 2 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
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 
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 
 [ " ( 2 9 ,   1 ) " ,   " ( 3 1 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
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 
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 T r a n s f o r m   t w o   2 8 ,   3 3 
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 
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 
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 
 [ " ( 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 6 ,   1 ) " ,   " ( 2 4 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 7 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 8 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 1 0 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 1 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
 [ " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 0 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 3 ,   1 ) " ,   " ( 2 4 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 4 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 5 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 6 ,   6 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 3 ) " ,   " ( 5 ,   1 2 ) " ,   " ( 1 8 ,   1 3 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 8 ,   1 0 ) " ,   " ( 3 0 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 9 ,   5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 1 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 
 
 [ " ( 0 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 5 ,   1 ) " ,   " ( 2 0 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 6 ,   1 ) " ,   " ( 2 4 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 7 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 8 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 0 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 1 ,   1 5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 2 0 ,   1 2 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 0 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 3 ,   1 ) " ,   " ( 2 4 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 4 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 5 ,   4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 6 ,   6 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 8 ,   1 0 ) " ,   " ( 3 0 ,   8 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 9 ,   5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 1 ,   1 4 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 
 
 [ " ( 0 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 8 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 1 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 6 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 8 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 0 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
 [ " ( 2 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 5 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
 [ " ( 2 7 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
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 
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 
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 
 [ " ( 2 8 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
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 
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 
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 T r a n s f o r m   t w o   0 ,   5 
 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
 [ " ( 1 1 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 2 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 3 ,   9 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 4 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 0 ,   5 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 1 7 ,   1 3 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 9 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 2 ,   9 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 [ " ( 3 ,   1 ) " ,   " ( 1 8 4 4 6 7 4 4 0 7 3 7 0 9 5 5 1 6 1 5 ,   0 ) " ] 
 
 
 
 t h r e a d   ' a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e '   p a n i c k e d   a t   s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 3 3 5 : 1 7 : 
 
 a s s e r t i o n   ` l e f t   = =   r i g h t `   f a i l e d 
 
     l e f t :   1 
 
   r i g h t :   2 
 
 s t a c k   b a c k t r a c e : 
 
       0 :   s t d : : p a n i c k i n g : : b e g i n _ p a n i c _ h a n d l e r 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ s t d \ s r c \ p a n i c k i n g . r s : 6 4 7 
 
       1 :   c o r e : : p a n i c k i n g : : p a n i c _ f m t 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 7 2 
 
       2 :   c o r e : : p a n i c k i n g : : a s s e r t _ f a i l e d _ i n n e r 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 3 4 2 
 
       3 :   c o r e : : p a n i c k i n g : : a s s e r t _ f a i l e d < u s i z e , u s i z e > 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 \ l i b r a r y \ c o r e \ s r c \ p a n i c k i n g . r s : 2 9 7 
 
       4 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : l o c a l : : m a k e _ p i v o t _ i d e a l _ g e n < r e f $ < f e a n o r _ m a t h : : r i n g : : R i n g V a l u e < f e a n o r _ m a t h : : r i n g s : : z n : : z n _ s t a t i c : : Z n B a s e < 1 6 , f a l s e >   >   > , f e a n o r _ m a t h : : m a t r i x : : s u b m a t r i x : : A s F i r s t E l e m e n t < f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : I n t e r n a l R o 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 3 3 5 
 
       5 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : l o c a l : : r o w _ e c h e l o n _ o p t i m i s t i c < r e f $ < f e a n o r _ m a t h : : r i n g : : R i n g V a l u e < f e a n o r _ m a t h : : r i n g s : : z n : : z n _ s t a t i c : : Z n B a s e < 1 6 , f a l s e >   >   > , f e a n o r _ m a t h : : m a t r i x : : s u b m a t r i x : : A s F i r s t E l e m e n t < f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : I n t e r n a l 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 3 9 8 
 
       6 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : b l o c k e d _ r o w _ e c h e l o n < r e f $ < f e a n o r _ m a t h : : r i n g : : R i n g V a l u e < f e a n o r _ m a t h : : r i n g s : : z n : : z n _ s t a t i c : : Z n B a s e < 1 6 , f a l s e >   >   > , f e a n o r _ m a t h : : m a t r i x : : s u b m a t r i x : : A s F i r s t E l e m e n t < f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : I n t e r n a l R o w < u 6 4 >   > 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 6 1 4 
 
       7 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : g b _ s p a r s e _ r o w _ e c h e l o n < r e f $ < f e a n o r _ m a t h : : r i n g : : R i n g V a l u e < f e a n o r _ m a t h : : r i n g s : : z n : : z n _ s t a t i c : : Z n B a s e < 1 6 , f a l s e >   >   > , f a l s e > 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 7 5 9 
 
       8 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 1 3 1 2 
 
       9 :   f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e : : c l o s u r e $ 0 
 
                           a t   . \ s r c \ a l g o r i t h m s \ s p a r s e _ i n v e r t \ m o d . r s : 1 0 1 1 
 
     1 0 :   c o r e : : o p s : : f u n c t i o n : : F n O n c e : : c a l l _ o n c e < f e a n o r _ m a t h : : a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e : : c l o s u r e _ e n v $ 0 , t u p l e $ < >   > 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 \ l i b r a r y \ c o r e \ s r c \ o p s \ f u n c t i o n . r s : 2 5 0 
 
     1 1 :   c o r e : : o p s : : f u n c t i o n : : F n O n c e : : c a l l _ o n c e 
 
                           a t   / r u s t c / 6 b 4 f 1 c 5 e 7 8 2 c 7 2 a 0 4 7 a 2 3 e 9 2 2 d e c d 3 3 e 7 d 4 6 2 3 4 5 / l i b r a r y \ c o r e \ s r c \ o p s \ f u n c t i o n . r s : 2 5 0 
 
 n o t e :   S o m e   d e t a i l s   a r e   o m i t t e d ,   r u n   w i t h   ` R U S T _ B A C K T R A C E = f u l l `   f o r   a   v e r b o s e   b a c k t r a c e . 
 
 
 
 
 
 f a i l u r e s : 
 
         a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ h u g e 
 
         a l g o r i t h m s : : s p a r s e _ i n v e r t : : t e s t _ l i n e a r _ c o m b i n e _ r o w s 
 
 
 
 t e s t   r e s u l t :   F A I L E D .   7   p a s s e d ;   2   f a i l e d ;   0   i g n o r e d ;   0   m e a s u r e d ;   2 1 7   f i l t e r e d   o u t ;   f i n i s h e d   i n   5 . 5 3 s 
 
 
 
 