-al -ic a-a a-b a-c a-i aaa aab aac aag aai aak aal aar ab- aba abb abc abg abi abk abl abr ac- aca acb acc acg aci ack acl acr ag- aga agb agc agg agi agk agl agr ai- aia aib aic aig aii aik ail air aka akb akc akg aki akk akl akr al- ala alb alc alg ali alk all alr ar- ara arb arc arg ari ark arl arr baa bab bac bag bai bak bal bar bba bbb bbc bbg bbi bbk bbl bbr bca bcb bcc bcg bci bck bcl bcr bga bgb bgc bgg bgi bgk bgl bgr bi- bia bib bic big bii bik bil bir bka bkb bkc bkg bkk bkl bkr bla blb blc blg bli blk bll blr bra brb brg bri brk brl brr c-- caa cab cac cag cai cak cal car cba cbb cbc cbg cbi cbk cbl cbr cca ccb ccc ccg cci cck ccl ccr cga cgb cgc cgg cgi cgl cgr ci- cia cib cic cig cii cik cil cir cka ckb ckc cki cl- cla clb clc clg cli clk cll clr cra crb crc crg cri crk crl crr gaa gab gac gag gai gak gal gar gba gbc gbg gbi gbk gbl gbr gca gcb gcc gcg gci gck gcl gcr gga ggb ggc ggg ggi ggr gia gib gic gig gii gik gil gir gka gkb gla glb glc glg gli glk gll glr gra grb grc grg gri grk grl grr ia- iaa iab iac iag iai ial iar iba ibb ibc ibg ibi ibk ibl ibr ica icb icc icg ici ick icl icr iga igb igc igg igi igk igl igr iia iib iic iii iil iir ika ikb ikc iki ikk ikl ikr il- ila ilb ilc ilg ili ilk ill ilr ir- ira irb irc irg iri irk irl irr ka- kaa kab kac kag kai kak kal kar kba kbb kbc kbi kbk kbl kbr kca kcb kcc kcg kci kck kcl kcr kga kgb kgc kgi kgl kia kib kic kig kii kik kil kir kkb kkc kki kkk kkl kkr kl- kla klb klc klg kli klr kra krc krg kri krk krl krr la- laa lab lac lag lai lak lal lar lba lbb lbc lbg lbi lbk lbl lbr lca lcb lcc lcg lci lck lcl lcr lga lgb lgc lgg lgi lgk lgl lgr lia lib lic lig lii lik lil lir lka lkb lkg lkl lkr lla llb llc llg lli llk lll llr lra lrb lrc lrg lri lrk lrr ra- raa rab rac rag rai rak ral rar rba rbb rbc rbg rbi rbk rbl rbr rca rcb rcc rcg rci rcl rcr rga rgb rgc rgg rgi rgk rgr ria rib ric rig rii rik ril rir rkb rkc rkg rkk rla rlc rlg rli rll rlr rra rrb rrc rrg rri rrk rrl rrr

a-ak a-ii aaaa aaab aaac aaai aaal aaar aaba aabb aabc aabi aabl aaca aacb aacc aaci aack aacl aacr aaib aaic aaii aaka aala aalc aali aall aara aarc aari abaa abab abac abag abai abak abal abar abb- abba abbb abbi abbr abca abcb abcc abci abcl abcr abgl abia abib abic abig abil abir abla abra abrc abri acaa acab acac acag acai acar acba acbl acca accc acci acga acgi acgr aci- acia acic acir acla aclc acli aclr acr- acra acrc acri acrr agac agag agai agal agar agba agca agcc agga aggi agia agib agic agig agii agil agir agla aglc agli agra agri agrl aiai aiba aibl aica aicc aicr aiga aiia aiib aiic aiir aika aiki aila aili aira airi akaa akai akal akar akca akia akik akil akir akka akki akr- akra alaa alac alag alai alak alal alar alb- alba albc albi alca alcc alg- alga algi ali- alia alib alig alii alik alil alir alk- alka alkb alki all- alla alli alll allr arab arac arag arai arak aral arar arba arbi arc- arca arci arga argb argi aria arib arig arii arik aril arka arki arla arli arr- arra arrc arrg arri arrk arrr ba-i baaa baak baal baar baba babb babi babr bac- baca bacc baci back baga bagg bagi baia baib baic baig baik bail bair bak- baka baki bakl bakr bala balc bali balk ball bar- bara barb barc barg bari bark barr bbbb bbci bbga bblb bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bccl bcia bcra bgca bgia biak bial biar biba bibb bibi bibl bica bicc bicg bici bick biga bigb bigc bigg bila bili bilk bill bira birb birg biri birk birl birr blaa blab blac blag blak blic blik blir blkb blrc blrg brab brac brag brai brak brca brcb bria bric brig brik bril brka brkb brrr caaa caab caac caal caba cabg cabi cac- caca cacc caci cack cacr caga cagg cagi cagr caia caib caic caik cail cair caka cala calc cali calk call cara carb carc cari cark carl carr cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbga cbgb cbia cbir cbka cbkg cbkl cbkr cblb cblc cbrl ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci cccl ccga ccgc ccic ccii ccil ccir ccla cclc cclg ccli ccra ccrc ccrg ccri ccrl cgac cgal cgcc cgcg ciaa ciak cial ciar ciba cibc cibi cica cicc cici cicr ciga cigi ciia ciii cika cikr cila cili cilk cill cira cirb circ ciri cirk cirl cirr ckac ckbc ckbi ckck ckcl ckga ckgl cklg ckrc clab clag clai clar clib clic clig clii clik clir clkg clra clri crab crac crag crai crar crbc crca crcc crcr cria crib cric crig crik crkc crkl gaal gaar gaba gabb gabi gabl gabr gack gaga gagg gagi gaia gaig gail gair gaki gala gali galk gall gara garb garg gari garr gbag gc-c gcaa gcal gcbc gccc gcic gcii gclc