Task: Program Execution
Input (English): [[-84, -87, 21, -86], [-136, -18], [-72, -29, -59], [-132, 36], [14, -48, -60, -63], [-91, -133, -108, 35, -76, -108, 45]]
Output (English): [21, -18, -29, 36, 14, 45]