Task: Program Execution
Input (English): [-28, -11, -91, -78, 27, -60, 43, 91, 27, -18, 86, -27, -57, -29]
Output (English): [-19.5, -51.0, -84.5, -25.5, -16.5, -8.5, 67.0, 59.0, 4.5, 34.0, 29.5, -42.0, -43.0]