Character Sequence

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Alka and Abhishek are playing a word game in which Alka will give two sequences of characters $S1$ and $S2$ to Abhishek and Abhishek have to obtain the second sequence $S2$ by using the characters present in the first sequence $S1$. Abhishek was not sure that whether he can obtain the second sequence from first or not. Help Abhishek. For example, if the two sequences $S1$ and $S2$ given by Alka a

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solution.cppC++17

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