Task: Program Execution
Input (English): [[-119, -180, -68, -163], [-175, 15, 52], [78, 50, 57, 39, -71, -124, -108], [19, -98, -146, -89], [81, -152], [-144, 8, -140]]
Output (English): [-68, 52, 78, 19, 81, 8]