Task: Program Execution
Input (English): 8, 15, ['5229', '4553', '3485', 'E', 'M', 'm', 'M', 'B', '8119', '7871', '5661', '2545', '2519', 'b', '5165', 'h', 'L']
Output (English): 5615b91525452166517879118B