Task: Program Execution
Input (English): [-73, -63, 79, 46, 99, 30, -90, 21, -66, -84, -19, 20]
Output (English): [-68.0, 8.0, 62.5, 72.5, 64.5, -30.0, -34.5, -22.5, -75.0, -51.5, 0.5]