Task: Program Execution
Input (English): [-77, 89, -81, -21, 98, -19, 77, -80, 29, 0, -22, 47, 86, 9, -83]
Output (English): [6.0, 4.0, -51.0, 38.5, 39.5, 29.0, -1.5, -25.5, 14.5, -11.0, 12.5, 66.5, 47.5, -37.0]