Task: Program Execution
Input (English): [-2, 44, 55, 28, 81, 72, -83, -2, -96, 39, 51, -87, 100, 69, -11]
Output (English): [21.0, 49.5, 41.5, 54.5, 76.5, -5.5, -42.5, -49.0, -28.5, 45.0, -18.0, 6.5, 84.5, 29.0]