Help in easy problem

Revision en1, by ScienceGuy, 2017-07-24 17:36:57

Hi, can you please tell me the solution for this problem?

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en2 English ScienceGuy 2017-07-24 17:37:08 43 Tiny change: 's problem?' -> 's problem? http://codeforces.me/gym/101147/problem/E'
en1 English ScienceGuy 2017-07-24 17:36:57 77 Initial revision (published)