tysn1 sysn rysn12 qysn1 pysn
47rn 37rn12 27rn1 17rn 07rn12
fhrn12 ehrn1 dhrn chrn12 bhrn1
qqqn1 pqqn oqqn12 nqqn1 mqqn
1zpn 0zpn12 zzpn1 yzpn xzpn12