Task: Program Execution
Input (English): [39, -39, -81, 72, 93, -82, 29, -74, -55, -37, -38, 34, -87, 69, -27]
Output (English): [0.0, -60.0, -4.5, 82.5, 5.5, -26.5, -22.5, -64.5, -46.0, -37.5, -2.0, -26.5, -9.0, 21.0]