Task: Program Execution
Input (English): [[-31, -67, -146, -164], [12, 52, -190, -67, 34], [-44, -52, -106], [-145, 71, -37, 67, 83, 63, -132], [-117, -73, -124, -171, -64, -183], [-56, 70], [28, -153, -131, -140, 3, -104], [-71, -20, -123]]
Output (English): [-31, 52, -44, 83, -64, 70, 28, -20]