Educational Codeforces Round 92 (Rated for Div. 2) C. Good String

Educational Codeforces Round 92 (Rated for Div. 2) C. Good String 題目連接html Let’s call left cyclic shift of some string t1t2t3…tn−1tn as string t2t3…tn−1tnt1. Analogically, let’s call right cyclic shif
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