i3k2o7 j3k2 k3k2o l3k2o7 m3k2

7tl2 8tl2o 9tl2o7 aul2 bul2o

wkm2o xkm2o7 ykm2 zkm2o 0km2o7

lbn2o7 mbn2 nbn2o obn2o7 pbn2

a2n2 b2n2o c2n2o7 d2n2 e2n2o