-al -ic a-a a-b a-c a-i aaa aab aac aaf aai aak aal aas ab- aba abb abc abf abi abk abl abs ac- aca acb acc acf aci ack acl acs af- afa afb afc aff afi afk afl afs ai- aia aib aic aif aii aik ail ais aka akb akc aki akk akl aks al- ala alb alc alf ali alk all als as- asa asb asc asf asi ask asl ass baa bab bac baf bai bak bal bas bba bbb bbc bbf bbi bbk bbl bbs bca bcb bcc bcf bci bck bcl bcs bfa bfb bfc bff bfi bfl bfs bi- bia bib bic bif bii bik bil bis bka bkb bkc bkf bkk bkl bks bla blb blc blf bli blk bll bls bsa bsb bsc bsf bsi bsk bsl bss c-- caa cab cac caf cai cak cal cas cba cbb cbc cbf cbi cbk cbl cbs cca ccb ccc ccf cci cck ccl ccs cfa cfb cfc cff cfi cfk cfl cfs ci- cia cib cic cif cii cik cil cis cka ckb ckc cki cks cl- cla clb clc clf cli clk cll cls csa csb csc csf csi csk csl css faa fab fac faf fai fak fal fas fba fbb fbc fbf fbi fbk fbl fbs fca fcb fcc fcf fci fck fcl fcs ffa ffc fff ffi ffk ffl ffs fia fib fic fif fii fik fil fis fka fkb fkc fkf fki fkk fkl fla flb flc flf fli fll fls fsa fsb fsc fsf fsi fsk fsl fss i-f ia- iaa iab iac iaf iai ial ias iba ibb ibc ibf ibi ibk ibl ibs ica icb icc icf ici ick icl ics ifa ifb ifc iff ifi ifl ifs iia iib iic iif iii iil iis ika ikb ikc ikf iki ikk ikl iks il- ila ilb ilc ilf ili ilk ill ils is- isa isb isc isf isi isk isl iss ka- kaa kab kac kaf kai kak kal kas kba kbb kbc kbf kbi kbk kbl kbs kca kcb kcc kci kck kcl kcs kfa kfc kff kfi kfs kia kib kic kif kii kik kil kis kkb kkc kki kkk kkl kks kl- kla klb klc klf kli kls ksa ksb ksc ksf ksi ksk ksl kss la- laa lab lac laf lai lak lal las lba lbb lbc lbf lbi lbk lbl lbs lca lcb lcc lcf lci lck lcl lcs lfa lfb lfc lff lfi lfk lfl lfs lia lib lic lif lii lik lil lis lka lkb lkl lks lla llb llc llf lli llk lll lls lsa lsb lsc lsf lsi lsk lsl lss saa sab sac saf sai sak sal sas sba sbb sbc sbf sbi sbk sbl sbs sca scb scc scf sci sck scl scs sfa sfb sfc sff sfi sfk sfl sfs sia sib sic sif sii sik sil sis sk- ska skb skc skf ski skk skl sks sla slb slc slf sli slk sll sls ss- ssa ssb ssc ssf ssi ssk ssl sss

a-ak a-ii aaaa aaab aaac aaaf aaai aaal aaas aaba aabb aabc aabi aabl aaca aacb aacc aacf aaci aack aacl aacs aafa aafb aafc aaff aafi aafl aaib aaic aaii aais aaka aala aalc aali aall aals aasa aasc aasf aasi aass abaa abab abac abaf abai abak abal abas abb- abba abbb abbi abbs abca abcb abcc abcf abci abcl abcs abff abia abib abic abil abis abla abls abs- absa absf absi absl abss acaa acab acac acai acas acba acbl acca accc accf acci accs acfc acfi acfl acfs aci- acia acic acif acis acks acla aclc acli acls acsa acsc acsi acsl acss afaa afak afbs afca afcb afcc afci afcs affa affc affi affs afia afib afif afik afil afis afka afla aflc afsa afsb afsc aiai aias aiba aibl aica aicc aicf aics aiff aifl aifs aiia aiib aiic aika aiki aiks aila aili ails aisa aisb aisi aisk aisl akaa akai akal akas akca akia akif akik akil akis akka akki aksa aksi alaa alac alai alak alal alas alb- alba albc albi albs alca alcc alcs alfa alfi alfs ali- alia alib alif alii alik alil alis alk- alka alkb alki all- alla alli alll alls alsa alsc asaa asab asac asaf asai asak asal asas asba asc- asca ascb ascc asci ascl asfa asfi asia asic asif asii asik asil asis aska aski asks asla asli assa assc assi assk assl asss ba-i baaa baaf baak baal baas baba babb babi babs bac- baca bacc baci back bacs bafc baff baia baib baic baik bail bais bak- baka baki bakl baks bala balc balf bali balk ball bals basa basc basf basi bask bass bbas bbbb bbbs bbci bbfc bblb bbls bcaa bcas bcbc bcbs bcca bccc bcci bccl bccs bcfc bcia bcis bcsa bcsc bcsl bcss bfas bfca bfcs bffl bffs bfsi biaf biak bial bias biba bibb bibi bibl bibs bica bicc bici bick bics bifa biff bifi biis bila bili bilk bill bils bis- bisa bisc bisk bisl biss blaa blab blac blak blas blfc blic blik blis blkb blls blss bsaa bsac bsas bsci bscs bsfa bsfc bsff bsfs bsic bslc bssc caaa caab caac caaf caal caas caba cabf cabi cabs cac- caca cacc caci cack cafa cafb cafc caff cafl cafs caia caib caic caik cail cais caka cala calc calf cali calk call cals casa casb casc casi cask casl cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbfb cbfc cbia cbka cbkl cblb cblc cbsa cbsc cbsi ccaa ccab ccac ccaf ccai ccas ccba ccbc ccca cccb cccc cccf ccci cccl cccs ccfa ccfc ccff ccfi ccfl ccic ccii ccil ccis ccla cclc ccli ccls ccsa ccsf ccsi ccsl ccss cfaa cfab cfac cfbc cfbs cfca cfcb cfcf cfcl cfcs cffb cfia cfls cfsa cfsi cfsl ciaa ciak cial cias ciba cibc cibi cica cicc cici cics cifa