71r1
81r1s
91r1sb
a2r1
b2r1s
wss1s
xss1sb
yss1
zss1s
0ss1sb
ljt1sb
mjt1
njt1s
ojt1sb
pjt1
aau1
bau1s
cau1sb
dau1
eau1s
z0u1s
00u1sb
10u1
20u1s
30u1sb