Task: Program Execution
Input (English): [28, 77, -1, -16, -72, -68, 75, 53, 45, -83, 6, 33, 89]
Output (English): [52.5, 38.0, -8.5, -44.0, -70.0, 3.5, 64.0, 49.0, -19.0, -38.5, 19.5, 61.0]