Task: Program Execution
Input (English): [42, -26, -74, -56, -13, -38, -66, -56, 89, -12, -9, 39, 1, 41, -56]
Output (English): [8.0, -50.0, -65.0, -34.5, -25.5, -52.0, -61.0, 16.5, 38.5, -10.5, 15.0, 20.0, 21.0, -7.5]