Task: Program Execution
Input (English): [[31, -148, -130, -65], [-66, -101], [35, -34, -161, -75, 87, 82], [-134, 60, 2, -194, -112, -173], [-150, -61, -119, 78, 51], [-9, -140]]
Output (English): [31, -66, 87, 60, 78, -9]