Task: Program Execution
Input (English): [88, 57, 5, -5, 61, -40, 50, -91, 42, 38, 87, -71, -88, -58, -21]
Output (English): [72.5, 31.0, 0.0, 28.0, 10.5, 5.0, -20.5, -24.5, 40.0, 62.5, 8.0, -79.5, -73.0, -39.5]