Task: Program Execution
Input (English): [-55, 0, -10, -35, -79, 58, 46, -14, 77, 13, 44, -31]
Output (English): [-27.5, -5.0, -22.5, -57.0, -10.5, 52.0, 16.0, 31.5, 45.0, 28.5, 6.5]