9bn20c
acn2
bcn20
ccn20c
dcn2
y2n2
z2n20
02n20c
12n2
22n20
nto20
oto20c
pto2
qto20
rto20c
ckp20c
dkp2
ekp20
fkp20c
gkp2
1aq2
2aq20
3aq20c
4aq2
5aq20