Task: Program Execution
Input (English): [12, 3, -86, -48, 56, -78, -49, 36, 68, -2, -25, -60]
Output (English): [7.5, -41.5, -67.0, 4.0, -11.0, -63.5, -6.5, 52.0, 33.0, -13.5, -42.5]