Task: Program Execution
Input (English): [[-21, -175], [82, 88, -6, -25, -161, -102, -51], [8, -44], [88, -70, -124, -142], [-191, -184, -50, -87, -13], [91, -78], [-197, -56]]
Output (English): [-21, 88, 8, 88, -13, 91, -56]