[@ 0.000ms] y1: apple pie
[@ 0.000ms] y2: pie
[@ 0.000ms] y3: impeach ringo starr
[@ 0.000ms] y3: 1 2 3
[@ 0.000ms] x4: walk the dog
[@ 0.000ms] x3: foo bar
[@ 0.000ms] x2: 43
[@ 0.000ms] x1: 34 45
[@ 0.000ms] x4: 234 345 456