Task: Program Execution
Input (English): [-33, 13, -7, 70, -51, -59, 75, 25, 84, -56, -35, -54, 58, -31, 21]
Output (English): [-10.0, 3.0, 31.5, 9.5, -55.0, 8.0, 50.0, 54.5, 14.0, -45.5, -44.5, 2.0, 13.5, -5.0]