Hallo Codeforces Hackers,

could you tell me what can possibly go wrong with the following submission? I even changed all ints to long long just in case, but I cannot seem to find out why. It passed all except for test 4_hand_3, what can be in that test? My solution looks the same as that in the tutorial (though I do not know Japanese).

Submission: https://beta.atcoder.jp/contests/abc110/submissions/3261324

Thank you very much.