Task: Program Execution
Input (English): [31, -53, 14, -61, 43, 75, -21, -6, -99, -87, -97, 28, -24, 67, -40]
Output (English): [-11.0, -19.5, -23.5, -9.0, 59.0, 27.0, -13.5, -52.5, -93.0, -92.0, -34.5, 2.0, 21.5, 13.5]