Task: Program Execution
Input (English): [-59, 68, -99, 60, -42, -48, 15, -43, -68, 32, 13, 76, -76]
Output (English): [4.5, -15.5, -19.5, 9.0, -45.0, -16.5, -14.0, -55.5, -18.0, 22.5, 44.5, 0.0]