-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aak aan aas aat ab- aba abb abc abd abe abi abk abn abs abt ac- aca acb acc acd ace aci ack acn acs act ad- ada adb adc add ade adi adk adn ads adt aea aeb aec aed aee aei aek aen aes aet ai- aia aib aic aid aie aii aik ain ais ait aka akb akc akd ake aki akk akn aks an- ana anb anc and ane ani ank ann ans ant as- asa asb asc asd ase asi ask asn ass ast at- ata atb atc atd ate ati atn ats att baa bab bac bad bae bai bak ban bas bat bba bbb bbc bbd bbe bbi bbk bbn bbs bbt bca bcb bcc bcd bce bci bck bcn bcs bct bda bdb bdc bdd bde bdi bdk bds bdt be- bea beb bec bed bee bei bek ben bes bet bi- bia bib bic bid bie bii bik bin bis bit bka bkb bkc bke bkk bkn bks bkt bna bnb bnc bnd bne bni bnk bnn bns bnt bsa bsb bsc bsd bse bsi bsk bsn bss bst bta btb btc btd bte bti btk btn bts btt c-- caa cab cac cad cae cai cak can cas cat cba cbb cbc cbd cbe cbi cbk cbn cbs cbt cca ccb ccc ccd cce cci cck ccn ccs cct cda cdb cdc cdd cde cdi cdk cdn cds cdt ce- cea ceb cec ced cee cei cek cen ces cet ci- cia cib cic cid cie cii cik cin cis cit cka ckb ckc ckd cki cks ckt cn- cna cnb cnc cnd cne cni cnn cns cnt csa csb csc csd cse csi csk csn css cst cta ctb ctc ctd cte cti ctk ctn cts ctt daa dab dac dad dae dai dak dan das dat dba dbb dbc dbd dbe dbi dbk dbn dbs dbt dca dcb dcc dcd dce dci dck dcn dcs dct dda ddb ddc ddd dde ddi ddk ddn dds ddt de- dea deb dec ded dee dei dek den des det di- dia dib dic did die dii dik din dis dit dka dkb dkc dke dki dkk dks dkt dna dnb dnc dnd dne dni dnk dnn dns dnt dsa dsb dsc dsd dse dsi dsk dsn dss dst dta dtb dtc dtd dte dti dtk dtn dts dtt eaa eab eac ead eae eai eak ean eas eat eba ebb ebc ebd ebe ebi ebk ebn ebs ebt ec- eca ecb ecc ecd ece eci eck ecn ecs ect ed- eda edb edc edd ede edi edk edn eds edt eea eeb eec eed eee eek een ees eet eia eib eic eid eie eii eik ein eis eit eka ekb ekc ekd eke eki eks ekt en- ena enb enc end ene eni enk enn ens ent es- esa esb esc esd ese esi esk esn ess est eta etb etc etd ete eti etk etn ets ett i-d ia- iaa iab iac iad iae iai ian ias iat iba ibb ibc ibd ibe ibi ibk ibn ibs ibt ica icb icc icd ice ici ick icn ics ict ida idb idc idd ide idi idk idn ids idt ie- iea iec ied iee iei iek ien ies iet iia iib iic iid iie iii iin iis iit ika ikb ikc ike iki ikk iks ikt in- ina inb inc ind ine ini ink inn ins int is- isa isb isc isd ise isi isk isn iss ist ita itb itc itd ite iti itk itn its itt k-t ka- kaa kab kac kad kae kai kak kan kas kat kba kbb kbc kbd kbe kbi kbk kbn kbs kca kcb kcc kcd kce kci kck kcn kcs kct kda kdb kdc kde kdk kds kdt ke- kea keb kec ked kee kei kek ken kes ket kia kib kic kid kie kii kik kin kis kit kkb kkc kke kki kkk kkn kks kkt kn- kna knc knd kne kni knk knn knt ksa ksb ksc ksd kse ksi ksk ksn kss kst kta ktb ktc kte ktk ktn kts ktt n-i naa nab nac nad nae nai nak nan nas nat nba nbb nbc nbd nbe nbi nbk nbn nbs nbt nca ncb ncc ncd nce nci nck ncn ncs nct nda ndb ndc ndd nde ndi ndk ndn nds ndt ne- nea neb nec ned nee nei nek nen nes net nia nib nic nid nie nii nik nin nis nit nka nkc nke nki nkk nkn nks nkt nna nnb nnc nne nni nnk nnn nns nnt nsa nsb nsc nsd nse nsi nsk nsn nss nst nta ntb ntc ntd nte nti ntk ntn nts ntt saa sab sac sad sae sai sak san sas sat sba sbb sbc sbd sbe sbi sbk sbn sbs sbt sca scb scc scd sce sci sck scn scs sct sda sdb sdc sdd sde sdi sdk sdn sds sdt se- sea seb sec sed see sei sek sen ses set sia sib sic sid sie sii sik sin sis sit sk- ska skb skc skd ske ski skk sks skt sna snb snc snd sne sni snk snn sns snt ss- ssa ssb ssc ssd sse ssi ssk ssn sss sst sta stb stc std ste sti stk stn sts stt taa tab tac tad tae tai tak tan tas tat tba tbb tbc tbd tbe tbi tbk tbn tbs tbt tca tcb tcc tcd tce tci tck tcn tcs tct tda tdb tdc tdd tde tdi tdk tdn tds tdt te- tea teb tec ted tee tei tek ten tes tet tia tib tic tid tie tii tik tin tis tit tka tkb tkc tke tkk tks tkt tna tnb tnc tnd tne tni tnk tnn tns tnt tsa tsb tsc tsd tse tsi tsk tsn tss tst tta ttb ttc ttd tte tti