Task: Program Execution
Input (English): [-73, -90, 24, 86, 64, -69, -2, 1, -24, -69, 84, 49, -74]
Output (English): [-81.5, -33.0, 55.0, 75.0, -2.5, -35.5, -0.5, -11.5, -46.5, 7.5, 66.5, -12.5]