Altered States | MatCom Online Grader

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Input

1 abacaba

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Output

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Input

2 abba bcab

--- Showing first 30 lines (click "Copy" to get full content) ---

Output

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Input

5 abvsvdh ahusywbag inzuqwbd iajhhdt qweqweqwe

--- Showing first 30 lines (click "Copy" to get full content) ---

Output

142

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