9rcn20 ascn bscn2 cscn20 dscn

yidn zidn2 0idn20 1idn 2idn2

n9dn2 o9dn20 p9dn q9dn2 r9dn20

c0en20 d0en e0en2 f0en20 g0en

1qfn 2qfn2 3qfn20 4qfn 5qfn2