Task: Program Execution
Input (English): [-87, 35, 61, 30, 47, 12, 80, -16, 72, -64, 54, 13, 97, 42, -21]
Output (English): [-26.0, 48.0, 45.5, 38.5, 29.5, 46.0, 32.0, 28.0, 4.0, -5.0, 33.5, 55.0, 69.5, 10.5]