Task: Program Execution
Input (English): [-48, 46, 42, -10, -84, -33, -48, 66, -51, 12, -17, -81, -18]
Output (English): [-1.0, 44.0, 16.0, -47.0, -58.5, -40.5, 9.0, 7.5, -19.5, -2.5, -49.0, -49.5]