-al -ic a-a a-b a-c a-i aaa aab aac aaf aai aak aal ab- aba abb abc abf abi abk abl ac- aca acb acc acf aci ack acl af- afa afb afc aff afi afk afl ai- aia aib aic aif aii aik ail aka akb akc aki akk akl al- ala alb alc alf ali alk all baa bab bac baf bai bak bal bba bbb bbc bbf bbi bbk bbl bca bcb bcc bcf bci bck bcl bfa bfb bfc bff bfi bfl bi- bia bib bic bif bii bik bil bka bkb bkc bkf bkk bkl bla blb blc blf bli blk bll c-- caa cab cac caf cai cak cal cba cbb cbc cbf cbi cbk cbl cca ccb ccc ccf cci cck ccl cfa cfb cfc cff cfi cfk cfl ci- cia cib cic cif cii cik cil cka ckb ckc cki cl- cla clb clc clf cli clk cll faa fab fac faf fai fak fal fba fbb fbc fbf fbi fbk fbl fca fcb fcc fcf fci fck fcl ffa ffc fff ffi ffk ffl fia fib fic fif fii fik fil fka fkb fkc fkf fki fkk fkl fla flb flc flf fli fll i-f ia- iaa iab iac iaf iai ial iba ibb ibc ibf ibi ibk ibl ica icb icc icf ici ick icl ifa ifb ifc iff ifi ifl iia iib iic iif iii iil ika ikb ikc ikf iki ikk ikl il- ila ilb ilc ilf ili ilk ill ka- kaa kab kac kaf kai kak kal kba kbb kbc kbf kbi kbk kbl kca kcb kcc kci kck kcl kfa kfc kff kfi kia kib kic kif kii kik kil kkb kkc kki kkk kkl kl- kla klb klc klf kli la- laa lab lac laf lai lak lal lba lbb lbc lbf lbi lbk lbl lca lcb lcc lcf lci lck lcl lfa lfb lfc lff lfi lfk lfl lia lib lic lif lii lik lil lka lkb lkl lla llb llc llf lli llk lll

a-ak a-ii aaaa aaab aaac aaaf aaai aaal aaba aabb aabc aabi aabl aaca aacb aacc aacf aaci aack aacl aafa aafb aafc aaff aafi aafl aaib aaic aaii aaka aala aalc aali aall abaa abab abac abaf abai abak abal abb- abba abbb abbi abca abcb abcc abcf abci abcl abff abia abib abic abil abla acaa acab acac acai acba acbl acca accc accf acci acfc acfi acfl aci- acia acic acif acla aclc acli afaa afak afca afcb afcc afci affa affc affi afia afib afif afik afil afka afla aflc aiai aiba aibl aica aicc aicf aiff aifl aiia aiib aiic aika aiki aila aili akaa akai akal akca akia akif akik akil akka akki alaa alac alai alak alal alb- alba albc albi alca alcc alfa alfi ali- alia alib alif alii alik alil alk- alka alkb alki all- alla alli alll ba-i baaa baaf baak baal baba babb babi bac- baca bacc baci back bafc baff baia baib baic baik bail bak- baka baki bakl bala balc balf bali balk ball bbbb bbci bbfc bblb bcaa bcbc bcca bccc bcci bccl bcfc bcia bfca bffl biaf biak bial biba bibb bibi bibl bica bicc bici bick bifa biff bifi bila bili bilk bill blaa blab blac blak blfc blic blik blkb caaa caab caac caaf caal caba cabf cabi cac- caca cacc caci cack cafa cafb cafc caff cafl caia caib caic caik cail caka cala calc calf cali calk call cbac cbal cbbc cbca cbcc cbcl cbfb cbfc cbia cbka cbkl cblb cblc ccaa ccab ccac ccaf ccai ccba ccbc ccca cccb cccc cccf ccci cccl ccfa ccfc ccff ccfi ccfl ccic ccii ccil ccla cclc ccli cfaa cfab cfac cfbc cfca cfcb cfcf cfcl cffb cfia ciaa ciak cial ciba cibc cibi cica cicc cici cifa ciff cifl ciia ciii cika cila cili cilk cill ckac ckbc ckbi ckck ckcl ckfi cklf clab claf clai clib clic clif clii clik f--k faaa faac faba fabi faca facc fack fafa fafc faff fafi faik fail faki fala falc fali falk fall fbla fcab fcal fcba fcca fccf fcic fcii ffcc ffff ffii fiaa fiac fiaf fial fiba fica ficc fick fifa fifc fiff fifi fiii fiil fika fiki fila fili filk fill fkab flab flac flak flcl flia flic flii flik iaaa iaac iaai iaal iaba iaca iacc iafc iaff iafl iaia iala iall ibac ibca ibfi ibia icaa icab icac icaf icai ical icbc icca iccb iccc iccf icci iccl icfb icll ifaa ifac ifbb ific ifil ifla iiac iica iifa iiii iila ikki ikla ilac ilal ilbc ilca ilia ilic ilka ilki ill- illa illi k-ci kaaa kaab kaaf kaai kaak kaal kaba kabb kabc kabf kabi kacb kacc kaci kacl kafa kafc kaff kafi kaia kaib kaic kaif kaii kaik kail kaka kakc kaki kakk kala kalb kalc kalf kali kalk kall kbaa kbab kbac kbai kbak kbal kbba kbbb kbbc kbbf kbbi kbbk kbbl kbca kbcb kbci kbck kbcl kbfb kbfc kbff kbfi kbfk kbfl kbia kbib kbic kbif kbik kbil kbkb kbkf kbkk kbkl kbla kblb kblf kbll kcaa kcab kcac kcai kcal kcba kcbc kcbf kcbi kcbk kcbl kcca kccb kccc kcci kcck kccl kcfa kcfb kcfc kcfi kcfl kcic kcif kcii kcil kckc kckf kckk kckl kcla kclc kclf kcli kclk kcll kfab kfac kfai kfal kfbc kfbk kfcf kffa kffb kfff kffk kfia kfil kfka kfkb kfla kflb kflc kflf kfli kfll kiab kiac kiai kiba kibb kibc kibi kibl kica kicb kicc kick kicl kifa kiff kifl kiia kiic kiii kiik kika kikc kikf kiki kikk kila kilb kili kilk kill kkaa kkac kkai kkal kkba kkbb kkbi kkbl kkcb kkci kkck kkcl kkfi kkia kkic kkik kkkk kklb kklc kklf kkli kkll klaa klab klac klaf klai klak klal klbb klbc klbf klbl klca klcb klcc klci klck klcl klfa klfc klff klfi klib klic klif klik klil klka klkc klkk klkl