a-a a-c aaa aac aae aag aah aak aan aao ac- aca acc ace acg ach ack acn aco aea aec aee aeg aeh aek aen aeo ag- aga agc age agg agh agk agn ago aha ahc ahe ahg ahh ahk ahn aho aka akc ake akg akh akk akn ako an- ana anc ane ang anh ank ann ano aoa aoc aoe aog aoh aok aon aoo c-- caa cac cae cag cah cak can cao cca ccc cce ccg cch cck ccn cco ce- cea cec cee ceg ceh cek cen ceo cga cgc cge cgg cgh cgn cgo ch- cha chc che chg chh chk chn cho cka ckc ckh cko cn- cna cnc cne cng cnh cnn cno co- coa coc coe cog coh cok con coo eaa eac eae eag eah eak ean eao ec- eca ecc ece ecg ech eck ecn eco eea eec eee eeg eek een eeo ega egc ege egg egh egn ego eha ehc ehe ehg ehh ehn eho eka ekc eke ekg ekh eko en- ena enc ene eng enh enk enn eno eo- eoa eoc eoe eog eoh eok eon eoo gaa gac gae gag gah gak gan gao gca gcc gce gcg gch gck gcn gco ge- gea gec gee geg geh gek gen geo gga ggc ggg ggh ggn ggo gha ghc ghe ghg ghh ghn gho gka gkh gkn gko gna gnc gne gnn gno goa goc goe gog goh gok gon goo haa hac hae hag hah hak han hao hca hcc hce hcg hch hck hcn hco he- hea hec hee heg heh hek hen heo hga hgc hge hgg hgh hgk hgn hgo hha hhc hhe hhg hhh hhk hhn hho hka hkg hkh hkk hkn hko hna hnc hne hng hnh hnk hnn hno hoa hoc hoe hog hoh hok hon hoo ka- kaa kac kae kag kah kak kan kao kca kcc kce kcg kch kck kcn ke- kea kec kee keg keh kek ken keo kga kgc kgh kgo kha khe khh khk khn kho kkc kke kkh kkk kkn kn- kna knc kne kng knk knn kno koa koc koe kog koh kok kon koo naa nac nae nag nah nak nan nao nca ncc nce ncg nch nck ncn nco ne- nea nec nee neg neh nek nen neo nga ngc nge ngg ngh ngk ngn ngo nha nhc nhe nhg nhh nhk nhn nka nkc nke nkk nkn nko nna nnc nne nng nnh nnk nnn nno no- noa noc noe nog noh nok non noo oaa oac oae oag oah oak oan oao oc- oca occ ocg och ock ocn oco oea oec oee oeg oeh oen oeo oga ogc oge ogg ogh ogn ogo oha ohc ohe ohg ohh ohn oho oka okc oke okg okk oko on- ona onc one ong onh onk onn ono oo- ooa ooc oog ooh ook oon ooo