Task: Program Execution
Input (English): 13, 13, ['2311', '2449', 'T', 'l', '339', 'j', '1603', 'n', '3325', '6243', '3931', 'X', 'Y', 'T', 'Z', 'e', '6985', '5101', 'W', '785', '551', 'p']
Output (English): Y