Task: Program Execution
Input (English): [-12, 80, -85, -32, -67, 26, 1, 49, -58, 19, 49, -56, -69]
Output (English): [34.0, -2.5, -58.5, -49.5, -20.5, 13.5, 25.0, -4.5, -19.5, 34.0, -3.5, -62.5]