bt1hf
ct1hff
dt1h
et1hf
ft1hff
0j2hff
1j2h
2j2hf
3j2hff
4j2h
pa3h
qa3hf
ra3hff
sa3h
ta3hf
e13hf
f13hff
g13h
h13hf
i13hff
3r4hff
4r4h
5r4hf
6r4hff
7r4h