Task: Program Execution
Input (English): [-88, 53, 68, -21, 85, -13, 68, 65, -23, -49, -17, 42, -54, 77, -87]
Output (English): [-17.5, 60.5, 23.5, 32.0, 36.0, 27.5, 66.5, 21.0, -36.0, -33.0, 12.5, -6.0, 11.5, -5.0]