Task: Program Execution
Input (English): 13, 17, ['6451', '5653', 'Q', 'f', 'Z', '5939', '411', '3657', 'N', 'U', '5543', '1937', '9173', '5405', 'r', 'e', 'u', '7901', 'p', 'u', 'l', '5939', 'U', 'f', 'z']
Output (English): 9173, 5405, r, e, u