Task: Program Execution
Input (English): [[-18, -117, -48], [72, -30, -20], [-50, -116, -119], [15, -21], [12, 59, 80, -142], [-30, 77, 61, 70, -107], [-104, 23, 41]]
Output (English): [-18, 72, -50, 15, 80, 77, 41]