Task: Program Execution
Input (English): [-16, -49, -25, -55, 91, -12, 98, 74, 43, 67, 84, 75, 54, 17, 85]
Output (English): [-32.5, -37.0, -40.0, 18.0, 39.5, 43.0, 86.0, 58.5, 55.0, 75.5, 79.5, 64.5, 35.5, 51.0]