Task: Program Execution
Input (English): [8, 77, -15, -63, 29, -28, 17, -43, -86, -37, -19, 40, 2]
Output (English): [42.5, 31.0, -39.0, -17.0, 0.5, -5.5, -13.0, -64.5, -61.5, -28.0, 10.5, 21.0]