Task: Program Execution
Input (English): 13, 18, ['Y', 'V', 'F', '3919', 's', '2881', '9545', 'C', 'G', '7909', 'K', 'O', '961', '9709', 'K', '7847', '731', 'f', 'z', '7265']
Output (English): f, 731, 7847, K, 9709, 961