Vitaly And Strings

medium

Text Processing

Question Solve Solutions

&lt;a href="https://codeforces.com/contest/518/problem/A" target="_blank"&gt;&lt;i class="fa fa-external-link" aria-hidden="true"&gt; Link -&gt; Vitaly and Strings&lt;/i&gt;&lt;/a&gt;

Input Format

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Output Format

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Constraints

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Example

Input

a
c

Output

Obscene Words Filter

Remove Adjacent

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