d3bp
e3bpq
f3bpqa
g3bp
h3bpq
2tcpq
3tcpqa
4tcp
5tcpq
6tcpqa
rkdpqa
skdp
tkdpq
ukdpqa
vkdp
gbep
hbepq
ibepqa
jbep
kbepq
51epq
61epqa
71ep
81epq
91epqa