Task: Program Execution
Input (English): 1, 9, ['S', 'P', 'Z', 'E', 'F', '3781', 'x', '2545', '9667', '5473', 'k', '2417', 'U', 'M']
Output (English): 9667, 2545, x, 3781, F, E, Z, P, S