-ic a-a a-b a-c a-i a-z aaa aab aac aag aai aak aar aaz ab- aba abb abc abg abi abk abr abz ac- aca acb acc acg aci ack acr acz ag- aga agb agc agg agi agk agr agz ai- aia aib aic aig aii aik air aiz aka akb akc akg aki akk akr ar- ara arb arc arg ari ark arr arz az- aza azb azg azi azz baa bab bac bag bai bak bar baz bba bbb bbc bbg bbi bbk bbr bca bcb bcc bcg bci bck bcr bcz bga bgb bgc bgg bgi bgk bgr bgz bi- bia bib bic big bii bik bir biz bka bkb bkc bkg bkk bkr bra brb brg bri brk brr brz bza bzr bzz c-- caa cab cac cag cai cak car caz cba cbb cbc cbg cbi cbk cbr cbz cca ccb ccc ccg cci cck ccr ccz cga cgb cgc cgg cgi cgr ci- cia cib cic cig cii cik cir cka ckb ckc cki cra crb crc crg cri crk crr crz cz- czc czk gaa gab gac gag gai gak gar gaz gba gbc gbg gbi gbk gbr gbz gca gcb gcc gcg gci gck gcr gga ggb ggc ggg ggi ggr ggz gia gib gic gig gii gik gir giz gka gkb gra grb grc grg gri grk grr gza gzr ia- iaa iab iac iag iai iar iaz iba ibb ibc ibg ibi ibk ibr ibz ica icb icc icg ici ick icr icz iga igb igc igg igi igk igr iia iib iic iii iir ika ikb ikc iki ikk ikr ir- ira irb irc irg iri irk irr iza izi izz k-z ka- kaa kab kac kag kai kak kar kaz kba kbb kbc kbi kbk kbr kbz kca kcb kcc kcg kci kck kcr kga kgb kgc kgi kia kib kic kig kii kik kir kiz kkb kkc kki kkk kkr kra krc krg kri krk krr ra- raa rab rac rag rai rak rar raz rba rbb rbc rbg rbi rbk rbr rca rcb rcc rcg rci rcr rga rgb rgc rgg rgi rgk rgr ria rib ric rig rii rik rir riz rkb rkc rkg rkk rkz rra rrb rrc rrg rri rrk rrr rza rzb z-g zaa zab zac zag zai zak zar zaz zbb zbc zbr zgb zgg zgi zia zib zig zik zir ziz zka zzr zzz