b1dn2 c1dn2i d1dn e1dn2 f1dn2i
0ren2i 1ren 2ren2 3ren2i 4ren
pifn qifn2 rifn2i sifn tifn2
e9fn2 f9fn2i g9fn h9fn2 i9fn2i
3zgn2i 4zgn 5zgn2 6zgn2i 7zgn