k7xxn l7xxnx m7xx n7xxn o7xxnx
9xyxnx ayyx byyxn cyyxnx dyyx
yozx zozxn 0ozxnx 1ozx 2ozxn
nf0xn of0xnx pf0x qf0xn rf0xnx
c60xnx d60x e60xn f60xnx g60x