a-a a-b a-c a-t aaa aab aac aad aae aaj aak aas aat ab- aba abb abc abd abe abj abk abs abt ac- aca acb acc acd ace acj ack acs act ad- ada adb adc add ade adj adk ads adt aea aeb aec aed aee aej aek aes aet aja ajb ajc ajd aje ajj ajk ajs ajt aka akb akc akd ake akj akk aks as- asa asb asc asd ase asj ask ass ast at- ata atb atc atd ate ats att baa bab bac bad bae baj bak bas bat bba bbb bbc bbd bbe bbk bbs bbt bca bcb bcc bcd bce bcj bck bcs bct bda bdb bdc bdd bde bdj bdk bds bdt be- bea beb bec bed bee bek bes bet bja bjc bjd bjj bjk bjs bjt bka bkb bkc bke bkk bks bkt bsa bsb bsc bsd bse bsj bsk bss bst bta btb btc btd bte btk bts btt c-- c-j caa cab cac cad cae caj cak cas cat cba cbb cbc cbd cbe cbj cbk cbs cbt cca ccb ccc ccd cce ccj cck ccs cct cda cdb cdc cdd cde cdj cdk cds cdt ce- cea ceb cec ced cee cej cek ces cet cja cjb cjc cjd cjk cjs cka ckb ckc ckd cks ckt csa csb csc csd cse csj csk css cst cta ctb ctc ctd cte ctk cts ctt daa dab dac dad dae daj dak das dat dba dbb dbc dbd dbe dbk dbs dbt dca dcb dcc dcd dce dck dcs dct dda ddb ddc ddd dde ddk dds ddt de- dea deb dec ded dee dej dek des det dj- dja djb djc djd dje djk djs djt dka dkb dkc dke dkk dks dkt dsa dsb dsc dsd dse dsj dsk dss dst dta dtb dtc dtd dte dtj dtk dts dtt eaa eab eac ead eae eaj eak eas eat eba ebb ebc ebd ebe ebj ebk ebs ebt ec- eca ecb ecc ecd ece ecj eck ecs ect ed- eda edb edc edd ede edj edk eds edt eea eeb eec eed eee eek ees eet eja ejc ejd ejt eka ekb ekc ekd eke eks ekt es- esa esb esc esd ese esk ess est eta etb etc etd ete etj etk ets ett j-d jaa jab jac jad jae jaj jak jas jat jba jbc jbj jbk jbs jbt jca jcb jcc jcd jce jck jcs jct jda jdb jdc jde jds jdt jea jeb jec jed jee jej jek jes jet jja jjb jjc jjj jjk jjs jka jkb jkk jks jkt jsa jsb jsc jsd jse jsj jsk jss jst jta jtb jtc jte jtk jts jtt k-t ka- kaa kab kac kad kae kaj kak kas kat kba kbb kbc kbd kbe kbk kbs kca kcb kcc kcd kce kck kcs kct kda kdb kdc kde kdk kds kdt ke- kea keb kec ked kee kek kes ket kjb kjc kje kjs kkb kkc kke kkk kks kkt ksa ksb ksc ksd kse ksk kss kst kta ktb ktc kte ktj ktk kts ktt saa sab sac sad sae saj sak sas sat sba sbb sbc sbd sbe sbj sbk sbs sbt sca scb scc scd sce scj sck scs sct sda sdb sdc sdd sde sdj sdk sds sdt se- sea seb sec sed see sej sek ses set sja sjb sjc sjd sje sjj sjk sjs sjt sk- ska skb skc skd ske skj skk sks skt ss- ssa ssb ssc ssd sse ssj ssk sss sst sta stb stc std ste stj stk sts stt taa tab tac tad tae taj tak tas tat tba tbb tbc tbd tbe tbj tbk tbs tbt tca tcb tcc tcd tce tcj tck tcs tct tda tdb tdc tdd tde tdk tds tdt te- tea teb tec ted tee tej tek tes tet tjc tjd tje tjs tka tkb tkc tke tkk tks tkt tsa tsb tsc tsd tse tsj tsk tss tst tta ttb ttc ttd tte ttk tts ttt