Task: Program Execution
Input (English): 1, ['7515', '6217', 'Y', 'V', '7557', '2133', 'L', 'A', 'C', 'J', 'm', '1493', '1125', '47', 'y', '7521', '4629', 'Z', 'B', '273', 'v', 'L']
Output (English): 7515