Task: Program Execution
Input (English): 16, 18, ['4223', 'C', 'v', '8969', '4267', 'k', 'B', 'U', 'E', 'Y', '8631', '1201', '9301', '5897', 'f', '4281', '6939', 'b']
Output (English): b, 6939, 4281