a-a a-b a-t aaa aab aae aaj aak aan aao aas aat ab- aba abb abe abj abk abn abo abs abt aea aeb aee aej aek aen aeo aes aet aja ajb aje ajj ajk ajn ajo ajs ajt aka akb ake akj akk akn ako aks an- ana anb ane anj ank ann ano ans ant aoa aob aoe aoj aok aon aoo aos aot as- asa asb ase asj ask asn aso ass ast at- ata atb ate atn ato ats att baa bab bae baj bak ban bao bas bat bba bbb bbe bbk bbn bbo bbs bbt be- bea beb bee bek ben beo bes bet bja bjj bjk bjn bjs bjt bka bkb bke bkk bkn bko bks bkt bna bnb bne bnj bnk bnn bno bns bnt boa bob boe boj bok bon boo bos bot bsa bsb bse bsj bsk bsn bso bss bst bta btb bte btk btn bto bts btt eaa eab eae eaj eak ean eao eas eat eba ebb ebe ebj ebk ebn ebo ebs ebt eea eeb eee eek een eeo ees eet eja ejo ejt eka ekb eke eko eks ekt en- ena enb ene enk enn eno ens ent eo- eoa eob eoe eok eon eoo eos eot es- esa esb ese esk esn eso ess est eta etb ete etj etk etn eto ets ett jaa jab jae jaj jak jan jao jas jat jba jbj jbk jbo jbs jbt jea jeb jee jej jek jen jeo jes jet jja jjb jjj jjk jjs jka jkb jkk jkn jko jks jkt jna jne jnj jnn jno jns jnt joa job joe joj jok jon joo jos jot jsa jsb jse jsj jsk jsn jso jss jst jta jtb jte jtk jtn jts jtt k-t ka- kaa kab kae kaj kak kan kao kas kat kba kbb kbe kbk kbn kbo kbs ke- kea keb kee kek ken keo kes ket kjb kje kjs kkb kke kkk kkn kks kkt kn- kna kne knk knn kno knt koa kob koe kok kon koo kos kot ksa ksb kse ksk ksn kso kss kst kta ktb kte ktj ktk ktn kto kts ktt naa nab nae naj nak nan nao nas nat nba nbb nbe nbk nbn nbo nbs nbt ne- nea neb nee nej nek nen neo nes net nja nje njk njn njs nka nke nkj nkk nkn nko nks nkt nna nnb nne nnk nnn nno nns nnt no- noa nob noe noj nok non noo nos not nsa nsb nse nsk nsn nso nss nst nta ntb nte ntk ntn nto nts ntt oaa oab oae oaj oak oan oao oas oat ob- oba obb obe obj obk obn obo obs obt oea oeb oee oen oeo oes oet oja ojb oje ojo ojs oka okb oke okj okk oko oks on- ona onb one onj onk onn ono ons ont oo- ooa oob ook oon ooo oos oot os- osa osb ose osj osk osn oso oss ost ot- ota otb ote otk otn oto ots ott saa sab sae saj sak san sao sas sat sba sbb sbe sbj sbk sbn sbo sbs sbt se- sea seb see sej sek sen seo ses set sja sjb sje sjj sjk sjs sjt sk- ska skb ske skj skk sko sks skt sna snb sne snj snk snn sno sns snt soa sob soe soj sok son soo sos sot ss- ssa ssb sse ssj ssk ssn sso sss sst sta stb ste stj stk stn sto sts stt taa tab tae taj tak tan tao tas tat tba tbb tbe tbj tbk tbn tbo tbs tbt te- tea teb tee tej tek ten teo tes tet tje tjo tjs tka tkb tke tkk tko tks tkt tna tnb tne tnk tnn tno tns tnt to- toa tob toe toj tok ton too tos tot tsa tsb tse tsj tsk tsn tso tss tst tta ttb tte ttk ttn tto tts ttt