Task: Program Execution
Input (English): [20, 57, 16, -66, -30, -89, 64, -22, 7, -36, -19, -71]
Output (English): [38.5, 36.5, -25.0, -48.0, -59.5, -12.5, 21.0, -7.5, -14.5, -27.5, -45.0]