Task: Program Execution
Input (English): [2, 85, 85, 3, -91, -4, -20, -79, 47, -2, -52, -16, -26, -73, 89]
Output (English): [43.5, 85.0, 44.0, -44.0, -47.5, -12.0, -49.5, -16.0, 22.5, -27.0, -34.0, -21.0, -49.5, 8.0]