Task: Program Execution
Input (English): [57, -54, -31, -88, -64, 64, 15, 51, -25, 30, -3, -36, -99]
Output (English): [1.5, -42.5, -59.5, -76.0, 0.0, 39.5, 33.0, 13.0, 2.5, 13.5, -19.5, -67.5]