Task: Program Execution
Input (English): 8, 11, ['7145', '837', '7923', 'y', 'X', '3557', 'q', 'M', '7189', '9841', 'A', '7939', '5529', 'n', '3559', '3479', '1335', 'y', 'P', '5711', 'J']
Output (English): A14899817M