-al -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aak aal aas aat ab- aba abb abc abe abi abk abl abs abt ac- aca acb acc ace aci ack acl acs act aea aeb aec aee aei aek ael aes aet ai- aia aib aic aie aii aik ail ais ait aka akb akc ake aki akk akl aks al- ala alb alc ale ali alk all als alt as- asa asb asc ase asi ask asl ass ast at- ata atb atc ate ati atl ats att baa bab bac bae bai bak bal bas bat bba bbb bbc bbe bbi bbk bbl bbs bbt bca bcb bcc bce bci bck bcl bcs bct be- bea beb bec bee bei bek bel bes bet bi- bia bib bic bie bii bik bil bis bit bka bkb bkc bke bkk bkl bks bkt bla blb blc ble bli blk bll bls blt bsa bsb bsc bse bsi bsk bsl bss bst bta btb btc bte bti btk btl bts btt c-- caa cab cac cae cai cak cal cas cat cba cbb cbc cbe cbi cbk cbl cbs cbt cca ccb ccc cce cci cck ccl ccs cct ce- cea ceb cec cee cei cek cel ces cet ci- cia cib cic cie cii cik cil cis cit cka ckb ckc cki cks ckt cl- cla clb clc cle cli clk cll cls clt csa csb csc cse csi csk csl css cst cta ctb ctc cte cti ctk ctl cts ctt eaa eab eac eae eai eak eal eas eat eba ebb ebc ebe ebi ebk ebl ebs ebt ec- eca ecb ecc ece eci eck ecl ecs ect eea eeb eec eee eek eel ees eet eia eib eic eie eii eik eil eis eit eka ekb ekc eke eki ekl eks ekt ela elb elc ele eli elk ell els elt es- esa esb esc ese esi esk esl ess est eta etb etc ete eti etk etl ets ett ia- iaa iab iac iae iai ial ias iat iba ibb ibc ibe ibi ibk ibl ibs ibt ica icb icc ice ici ick icl ics ict ie- iea iec iee iei iek iel ies iet iia iib iic iie iii iil iis iit ika ikb ikc ike iki ikk ikl iks ikt il- ila ilb ilc ile ili ilk ill ils ilt is- isa isb isc ise isi isk isl iss ist ita itb itc ite iti itk itl its itt k-t ka- kaa kab kac kae kai kak kal kas kat kba kbb kbc kbe kbi kbk kbl kbs kca kcb kcc kce kci kck kcl kcs kct ke- kea keb kec kee kei kek kel kes ket kia kib kic kie kii kik kil kis kit kkb kkc kke kki kkk kkl kks kkt kl- kla klb klc kli kls klt ksa ksb ksc kse ksi ksk ksl kss kst kta ktb ktc kte ktk ktl kts ktt la- laa lab lac lae lai lak lal las lat lba lbb lbc lbe lbi lbk lbl lbs lbt lca lcb lcc lce lci lck lcl lcs lct lea leb lec lee lei lek lel les let lia lib lic lie lii lik lil lis lit lka lkb lkl lks lkt lla llb llc lle lli llk lll lls llt lsa lsb lsc lse lsi lsk lsl lss lst lta ltb ltc lte lti ltk ltl lts ltt saa sab sac sae sai sak sal sas sat sba sbb sbc sbe sbi sbk sbl sbs sbt sca scb scc sce sci sck scl scs sct se- sea seb sec see sei sek sel ses set sia sib sic sie sii sik sil sis sit sk- ska skb skc ske ski skk skl sks skt sla slb slc sle sli slk sll sls slt ss- ssa ssb ssc sse ssi ssk ssl sss sst sta stb stc ste sti stk stl sts stt taa tab tac tae tai tak tal tas tat tba tbb tbc tbe tbi tbk tbl tbs tbt tca tcb tcc tce tci tck tcl tcs tct te- tea teb tec tee tei tek tel tes tet tia tib tic tie tii tik til tis tit tka tkb tkc tke tkk tkl tks tkt tla tlc tle tli tlk tll tls tlt tsa tsb tsc tse tsi tsk tsl tss tst tta ttb ttc tte tti ttk ttl tts ttt