Task: Program Execution
Input (English): [55, -27, 58, -83, 45, -49, -15, -96, 26, -11, 86, -12, -31]
Output (English): [14.0, 15.5, -12.5, -19.0, -2.0, -32.0, -55.5, -35.0, 7.5, 37.5, 37.0, -21.5]