Why is this giving Runtime Error?

Revision en1, by goadf90a, 2024-05-03 03:19:41

I just can't figure out why this has runtime error. https://mirror.codeforces.com/contest/1932/submission/259281147

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en1 English goadf90a 2024-05-03 03:19:41 142 Initial revision (published)