Task: Program Execution
Input (English): 5, 15, ['a', '3659', '429', 'R', 'c', 'P', 'j', 'z', 'E', '3715', '7889', '4345', 'J', 'i', 'p', '615', '9645', 'z', '7907', '8491', '8819', 'B', '5823', 'w', '6207', 't']
Output (English): piJ543498875173EzjPc