User blog comment:WaxPlanck/AddSub Game/@comment-80.98.179.160-20171230200749

1 2 4 6 4 4 4

1 2 4 6 3 5 3

1 2 4 6 4 4 4

1 2 4 6 3 5 3

...

We have a problem here: 1,2,4,6,4,4,4<->1,2,4,6,3,5,3. So AddSub(5) is undefined.