Disc #1 has 13 positions; at time=0, it is at position 10.
Disc #2 has 17 positions; at time=0, it is at position 15.
Disc #3 has 19 positions; at time=0, it is at position 17.
Disc #4 has 7 positions; at time=0, it is at position 1.
Disc #5 has 5 positions; at time=0, it is at position 0.
Disc #6 has 3 positions; at time=0, it is at position 1.