Task: Program Execution
Input (English): 9, 16, ['p', '2457', 'x', '6403', 'O', 'M', 'C', '5945', '8165', 'o', 'f', 'g', '3583', '1583', '3809', '3721', '8045', '4253', '1229']
Output (English): 3721, 3809, 1583, 3583, g, f, o, 8165