Task: Program Execution
Input (English): [54, 9, 88, 8, -67, -57, 60, 19, 95, -78, 45, 17, -21, -56, 28]
Output (English): [31.5, 48.5, 48.0, -29.5, -62.0, 1.5, 39.5, 57.0, 8.5, -16.5, 31.0, -2.0, -38.5, -14.0]