Task: Program Execution
Input (English): [-90, -99, 53, 30, -78, -33, -84, 67, 91, -75, -40, 7, 94, 35, 15]
Output (English): [-94.5, -23.0, 41.5, -24.0, -55.5, -58.5, -8.5, 79.0, 8.0, -57.5, -16.5, 50.5, 64.5, 25.0]