Task: Program Execution
Input (English): [19, -60, 52, 57, 31, -98, -69, -33, -5, -99, 56, -81, 4]
Output (English): [-20.5, -4.0, 54.5, 44.0, -33.5, -83.5, -51.0, -19.0, -52.0, -21.5, -12.5, -38.5]