8.4.1 Consider the following "codes": (0,1,2, 3, 4,5, 6,7); (7,6,5, 4,3,2, 1,0); (0, 0,0,0,0,0,0,0); (2,3, 1,2, 3,1,2,3). Which of these are "father codes" of trees? 8.4.1 Consider the following "codes": (0,1,2, 3, 4,5, 6,7); (7,6,5, 4,3,2, 1,0); (0, 0,0,0,0,0,0,0); (2,3, 1,2, 3,1,2,3). Which of these are "father codes" of trees