Task: Program Execution
Input (English): [-16, -7, -2, 3, 84, -53, 9, 30, -67, 44, -42, 99]
Output (English): [-11.5, -4.5, 0.5, 43.5, 15.5, -22.0, 19.5, -18.5, -11.5, 1.0, 28.5]