Task: Program Execution
Input (English): [-31, -21, 0, -72, -11, 34, -53, 86, -39, 77, 99, 22, -25]
Output (English): [-26.0, -10.5, -36.0, -41.5, 11.5, -9.5, 16.5, 23.5, 19.0, 88.0, 60.5, -1.5]