Task: Program Execution
Input (English): [-17, 68, -63, -23, 87, -81, 19, 92, -51, 19, 93, -75, -10, -21, -91]
Output (English): [25.5, 2.5, -43.0, 32.0, 3.0, -31.0, 55.5, 20.5, -16.0, 56.0, 9.0, -42.5, -15.5, -56.0]