a-a a-b a-c a-t aaa aab aac aae aaj aao aap aas aat ab- aba abb abc abe abj abo abp abs abt ac- aca acb acc ace acj aco acp acs act aea aeb aec aee aej aeo aep aes aet aja ajb ajc aje ajj ajo ajp ajs ajt aoa aob aoc aoe aoj aoo aop aos aot ap- apa apb apc ape apj apo app aps apt as- asa asb asc ase asj aso asp ass ast at- ata atb atc ate ato atp ats att b-p baa bab bac bae baj bao bap bas bat bba bbb bbc bbe bbo bbp bbs bbt bca bcb bcc bce bcj bco bcp bcs bct be- bea beb bec bee beo bep bes bet bja bjc bjj bjp bjs bjt boa bob boc boe boj boo bop bos bot bpa bpb bpc bpe bpo bpp bps bpt bsa bsb bsc bse bsj bso bsp bss bst bta btb btc bte bto btp bts btt c-- c-j caa cab cac cae caj cao cap cas cat cba cbb cbc cbe cbj cbo cbp cbs cbt cca ccb ccc cce ccj cco ccp ccs cct ce- cea ceb cec cee cej ceo cep ces cet cja cjb cjc cjp cjs co- coa cob coc coe coj coo cop cos cot cpa cpb cpc cpe cpj cpo cpp cps cpt csa csb csc cse csj cso csp css cst cta ctb ctc cte cto ctp cts ctt eaa eab eac eae eaj eao eap eas eat eba ebb ebc ebe ebj ebo ebp ebs ebt ec- eca ecb ecc ece ecj eco ecs ect eea eeb eec eee eeo eep ees eet eja ejc ejo ejp ejt eo- eoa eob eoc eoe eoo eop eos eot ep- epa epb epc epe epo epp eps ept es- esa esb esc ese eso esp ess est eta etb etc ete etj eto etp ets ett jaa jab jac jae jaj jao jap jas jat jba jbc jbj jbo jbs jbt jca jcb jcc jce jco jcp jcs jct jea jeb jec jee jej jeo jep jes jet jja jjb jjc jjj jjp jjs joa job joc joe joj joo jop jos jot jpa jpb jpc jpe jpj jpo jpp jps jpt jsa jsb jsc jse jsj jso jsp jss jst jta jtb jtc jte jtp jts jtt oaa oab oac oae oaj oao oap oas oat ob- oba obb obc obe obj obo obp obs obt oc- oca ocb occ ocj oco ocp ocs oct oea oeb oec oee oeo oep oes oet oja ojb ojc oje ojo ojs oo- ooa oob ooc ooo oop oos oot op- opa opb opc ope opj opo opp ops opt os- osa osb osc ose osj oso osp oss ost ot- ota otb otc ote oto otp ots ott p-p paa pab pac pae paj pao pap pas pat pba pbb pbc pbe pbj pbo pbp pbs pbt pca pcb pcc pce pcj pco pcp pcs pct pea peb pec pee peo pep pes pet pja pjc pjo pjp pjs poa pob poc poe poo pop pos pot ppa ppb ppc ppe ppj ppo ppp pps ppt ps- psa psb psc pse psj pso psp pss pst pt- pta ptb ptc pte ptj pto ptp pts ptt saa sab sac sae saj sao sap sas sat sba sbb sbc sbe sbj sbo sbp sbs sbt sca scb scc sce scj sco scp scs sct se- sea seb sec see sej seo sep ses set sja sjb sjc sje sjj sjp sjs sjt soa sob soc soe soj soo sop sos sot spa spb spc spe spo spp sps spt ss- ssa ssb ssc sse ssj sso ssp sss sst sta stb stc ste stj sto stp sts stt taa tab tac tae taj tao tap tas tat tba tbb tbc tbe tbj tbo tbp tbs tbt tca tcb tcc tce tcj tco tcp tcs tct te- tea teb tec tee tej teo tep tes tet tjc tje tjo tjp tjs to- toa tob toc toe toj too top tos tot tpa tpb tpc tpe tpj tpo tpp tps tpt tsa tsb tsc tse tsj tso tsp tss tst tta ttb ttc tte tto ttp tts ttt