Task: Program Execution
Input (English): [7, 9, -4, -55, -75, 43, -11, 20, 64, 71, -81, 59, -83, -55, 16]
Output (English): [8.0, 2.5, -29.5, -65.0, -16.0, 16.0, 4.5, 42.0, 67.5, -5.0, -11.0, -12.0, -69.0, -19.5]