Task: Program Execution
Input (English): [[-55, -189], [-2, 22, 78, -199], [-89, 18], [-3, -47, -21], [69, -6, 5, -89, 99], [44, -170, -3, 67, -90, -71, 57]]
Output (English): [-55, 78, 18, -3, 99, 67]