a-a a-b a-t aaa aab aae aaj aao aas aat ab- aba abb abe abj abo abs abt aea aeb aee aej aeo aes aet aja ajb aje ajj ajo ajs ajt aoa aob aoe aoj aoo aos aot as- asa asb ase asj aso ass ast at- ata atb ate ato ats att baa bab bae baj bao bas bat bba bbb bbe bbo bbs bbt be- bea beb bee beo bes bet bja bjj bjs bjt boa bob boe boj boo bos bot bsa bsb bse bsj bso bss bst bta btb bte bto bts btt eaa eab eae eaj eao eas eat eba ebb ebe ebj ebo ebs ebt eea eeb eee eeo ees eet eja ejo ejt eo- eoa eob eoe eoo eos eot es- esa esb ese eso ess est eta etb ete etj eto ets ett jaa jab jae jaj jao jas jat jba jbj jbo jbs jbt jea jeb jee jej jeo jes jet jja jjb jjj jjs joa job joe joj joo jos jot jsa jsb jse jsj jso jss jst jta jtb jte jts jtt oaa oab oae oaj oao oas oat ob- oba obb obe obj obo obs obt oea oeb oee oeo oes oet oja ojb oje ojo ojs oo- ooa oob ooo oos oot os- osa osb ose osj oso oss ost ot- ota otb ote oto ots ott saa sab sae saj sao sas sat sba sbb sbe sbj sbo sbs sbt se- sea seb see sej seo ses set sja sjb sje sjj sjs sjt soa sob soe soj soo sos sot ss- ssa ssb sse ssj sso sss sst sta stb ste stj sto sts stt taa tab tae taj tao tas tat tba tbb tbe tbj tbo tbs tbt te- tea teb tee tej teo tes tet tje tjo tjs to- toa tob toe toj too tos tot tsa tsb tse tsj tso tss tst tta ttb tte tto tts ttt