Task: Program Execution
Input (English): 10, 10, ['507', 'M', '5287', '467', '2959', '821', 'B', 's', '3733', '921', 'v', '4723', '4039', 'a', '1329', '6655', 'B', '2669', '391', 'i', 'F', '9431', 'x', 'w', '8761', 'k', '8413', 'v', '3185', '1183']
Output (English): 921