Task: Program Execution
Input (English): [-91, -79, 26, 82, 33, -10, 19, 78, 54, 52, 21, -30, 59, -85, -66]
Output (English): [-85.0, -26.5, 54.0, 57.5, 11.5, 4.5, 48.5, 66.0, 53.0, 36.5, -4.5, 14.5, -13.0, -75.5]