Task: Program Execution
Input (English): [[50, 72, -83], [-9, 47, -177, -156, -171], [-200, -23], [-99, -2, -193, -137], [-72, -62], [-159, 21, -157, 17, 34, 4, -108]]
Output (English): [72, 47, -23, -2, -62, 34]