3s2rht
2s2rh
1s2r
0s2rht
zs2rh
e21rh
d21r
c21rht
b21rh
a21r
pb1r
ob1rht
nb1rh
mb1r
lb1rht
0k0rht
zk0rh
yk0r
xk0rht
wk0rh
buzrh
auzr
9tzrht
8tzrh
7tzr