Task: Program Execution
Input (English): [-31, -1, 55, -54, 33, -7, -44, -3, 76, -76, 71, -61, 61]
Output (English): [-16.0, 27.0, 0.5, -10.5, 13.0, -25.5, -23.5, 36.5, 0.0, -2.5, 5.0, 0.0]