I have trouble with one random test :

89953 922317
which is supposed to output 4
I don't see how it can be, I find 5 when I run it by hand. It would be 4 if the carry was not counted in one of the operation which would be incorrect.

log of the operations :

3 7 +1
carryValue 1
carries 1

5 1
carryValue 0
carries 1

9 3 +1
carryValue 1
carries 2

9 2 +1
carryValue 1
carries 3

8 2 +1
carryValue 1
carries 4

0 9 +1
carryValue 1
carries 5

when doing the atempt, numbers are having different lentgh in the one pair

wrong description