Task: Program Execution
Input (English): [80, -22, 40, -3, 60, -64, -50, -51, 36, -7, -19, -70, 1, 3, -56]
Output (English): [29.0, 9.0, 18.5, 28.5, -2.0, -57.0, -50.5, -7.5, 14.5, -13.0, -44.5, -34.5, 2.0, -26.5]