Task: Program Execution
Input (English): [67, -76, -31, -71, 87, -83, 55, 68, -22, -27, -4, 20]
Output (English): [-4.5, -53.5, -51.0, 8.0, 2.0, -14.0, 61.5, 23.0, -24.5, -15.5, 8.0]