Task: Program Execution
Input (English): [[-33, -171, -160, -76], [-60, -10, -29, -57, 21, -25, 33], [44, -151, -125], [73, -172, -92, -4, 67], [94, -44, 11, 80, -13, -120, -167], [-99, -33, 64, 69]]
Output (English): [-33, 33, 44, 73, 94, 69]