Task: Program Execution
Input (English): [[-18, -128], [-145, 32, 11], [23, -194, 22], [42, -29, -32, -88], [59, -153, 71, -11, -3, -145], [-20, 12, 53, -168], [-137, 51], [42, 78, -57]]
Output (English): [-18, 32, 23, 42, 71, 53, 51, 78]