Task: Program Execution
Input (English): [[-21, -20], [-119, -20, -142, -122, -16], [73, -143, 83], [-50, -18, -169], [86, -139, -104, -172, -108, 32, 89], [-97, 33, 25, -148, 20, 10, -15], [-97, -64, 91], [9, -96, -130]]
Output (English): [-20, -16, 83, -18, 89, 33, 91, 9]