Dad
bits = tree[tree[n].Dad].Len + 1;
tree[n].Dad = tree[m].Dad = (ush)node;
bits = tree[tree[n].Dad].Len + 1;
tree[n].Dad = tree[m].Dad = (ush)node;
bits = tree[tree[n].Dad].Len + 1;
tree[n].Dad = tree[m].Dad = (ush)node;
bits = tree[tree[n].Dad].Len + 1;
tree[n].Dad = tree[m].Dad = (ush)node;