Task: Program Execution
Input (English): [49, -83, 20, 0, 2, 77, 18, -22, 3, 41, -75, -83, 25, -66, -99]
Output (English): [-17.0, -31.5, 10.0, 1.0, 39.5, 47.5, -2.0, -9.5, 22.0, -17.0, -79.0, -29.0, -20.5, -82.5]