Task: Program Execution
Input (English): 3, 20, ['k', 'O', 'q', '7611', '2579', '5497', '6827', '631', '5619', 'E', '5815', 'b', 'f', 'L', '3439', 'n', 'G', 'A', 'C', 'q', '9921', 'E']
Output (English): qCAGn3439Lfb5815E56196316827549725797611q