<> <> <<>> <<>> <> <<>> <> 0 | 7fff 1 | bfff 2 | dfff 3 | efff 4 | f7ff 5 | fbff 6 | fdff 7 | feff 8 | ff7f 9 | ffbf a | ffdf b | ffef c | fff7 d | fffb e | fffd f | fffe .