Task: Program Execution
Input (English): [-38, 62, -23, 79, -83, -4, -55, 58, 99, 25, -61, -31, 49]
Output (English): [12.0, 19.5, 28.0, -2.0, -43.5, -29.5, 1.5, 78.5, 62.0, -18.0, -46.0, 9.0]