2dbkn 3dbkne 4dbk 5dbkn 6dbkne
r4bkne s4bk t4bkn u4bkne v4bk
gvck hvckn ivckne jvck kvckn
5ldkn 6ldkne 7ldk 8ldkn 9ldkne
ucekne vcek wcekn xcekne ycek