bkcr4
ckcr4r
dkcr
ekcr4
fkcr4r
0adr4r
1adr
2adr4
3adr4r
4adr
p1dr
q1dr4
r1dr4r
s1dr
t1dr4
eser4
fser4r
gser
hser4
iser4r
3ifr4r
4ifr
5ifr4
6ifr4r
7ifr