Task: Program Execution
Input (English): [1, 53, 31, 78, -36, -21, -91, 82, -59, 84, 42, 38]
Output (English): [27.0, 42.0, 54.5, 21.0, -28.5, -56.0, -4.5, 11.5, 12.5, 63.0, 40.0]