Task: Program Execution
Input (English): 5, 21, ['e', 'j', '3607', '4541', '2251', '5041', 'f', '5105', 'l', '4361', 'Q', 'm', 'I', 'f', 'I', 'x', '1719', '7249', '8875', '9765', '6931', '583']
Output (English): 69319765887572491719xIfImQ4361l5105f50412251