Latha and her Cake

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Latha is celebrating her 21st birthday. She needs a customized cake. ### Input - First line will contain an integer, $N$ ### Output Display the cake ### Constraints - $1 \leq T \leq 1000$ - $2 \leq M \leq 10^9$ ### Subtasks - 30 points : $1 \leq R \leq 10000$ - 70 points : $1 \leq R \leq 10^9$ ### Sample Test Cases **Sample 1** Input: ``` 5 ``` Output: ``` aaaaa b b c c d d eeeee ```

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solution.cppC++17

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