Task: Program Execution
Input (English): 18, 20, ['M', '1727', '3805', '1333', '895', '2157', 'V', '5829', '2669', '547', 'A', '5371', 'T', 'b', '2655', 'S', '3381', 'A', '5691', 'D']
Output (English): A5691D