Task: Program Execution
Input (English): 8, 16, ['j', '9323', '9117', '7649', 'o', '1989', 'g', '5947', 'l', '1819', '837', 'O', 'B', 'M', 'B', 'P', 'u', 'm', 'y', '3781', '8013']
Output (English): PBMBO7389181l7495