Task: Program Execution
Input (English): [-73, -84, 98, -71, 33, 96, -31, -5, -94, 52, -91, -74]
Output (English): [-78.5, 7.0, 13.5, -19.0, 64.5, 32.5, -18.0, -49.5, -21.0, -19.5, -82.5]