Solving problems on codeforces.com with Python - '61A - Ultra Fast Mathematician' (Difficulty 800)

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0:00 Introduction and reading the problem
2:25 Explaining the problem and algorithm
3:35 Writing testcases
6:20 Implementation of the solution

Link to the problem:

Link to pytest setup video:

[keshavdj]

is there a way to not use enumerate to deal with this problem?