Task: Program Execution
Input (English): [42, -57, 62, 14, -89, 19, 56, -90, 32, 21, -2, -9]
Output (English): [-7.5, 2.5, 38.0, -37.5, -35.0, 37.5, -17.0, -29.0, 26.5, 9.5, -5.5]