Task: Program Execution
Input (English): [69, -16, 19, -51, 15, 29, 84, -56, 24, 55, 81, -19]
Output (English): [26.5, 1.5, -16.0, -18.0, 22.0, 56.5, 14.0, -16.0, 39.5, 68.0, 31.0]