Task: Program Execution
Input (English): [-19, 57, -31, -35, 94, 61, -78, 73, 92, -54, 27, -55, 64]
Output (English): [19.0, 13.0, -33.0, 29.5, 77.5, -8.5, -2.5, 82.5, 19.0, -13.5, -14.0, 4.5]