Task: Program Execution
Input (English): 2, 15, ['C', 'Q', '8921', '6023', '625', 'T', 'M', 'n', 'Z', '9819', '2361', 'E', 'l', 'E', 'I', '5099', 'i', 'O', 'w', '5517', '2973', 'o', '9949', 'I']
Output (English): Q89216023625TMnZ98192361ElEI