Print the Substring

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Problem description. An Ordinary string s of length l is repeated n times. Now it has become a very large string S. Shyam is an engineering student. He is interested in a substring sub that contains the characters present at the prime index of the String S from it's start to it's end in the same order. Help Shyam to find the desired string sub (The indexing starts from 0). Input Input descripti

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solution.cppC++17

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