Task: Program Execution
Input (English): [55, -15, 15, -92, -75, 35, 39, -55, -33, 48, 76, -91]
Output (English): [20.0, 0.0, -38.5, -83.5, -20.0, 37.0, -8.0, -44.0, 7.5, 62.0, -7.5]