Task: Program Execution
Input (English): [-77, 67, -21, 78, -36, -45, 33, -76, 69, -87, -34, -98]
Output (English): [-5.0, 23.0, 28.5, 21.0, -40.5, -6.0, -21.5, -3.5, -9.0, -60.5, -66.0]