Task: Program Execution
Input (English): 4, 5, ['F', 'F', '2975', '6409', 'n', 'n', 's', 'O', '3229', '2479', 'T', '255', 'F', '3255', 's', 'e', '5917', 'b', 'M', '6075', 'v', '5953', '4015', '6445', 'w', 'u', 'G']
Output (English): n6409