Task: Program Execution
Input (English): [48, 14, -43, 30, -53, 57, -59, 99, 56, -3, 34, -71, -29]
Output (English): [31.0, -14.5, -6.5, -11.5, 2.0, -1.0, 20.0, 77.5, 26.5, 15.5, -18.5, -50.0]