Task: Program Execution
Input (English): [[84, -23, -156, 65], [33, -187, -187, -179], [45, -17, -171, -156, 24, -190, -151], [55, -183], [-62, 97, 44, -137, -71, -116], [8, -196, -84, 53]]
Output (English): [84, 33, 45, 55, 97, 53]