a-a a-b a-c aaa aab aac aad aae aaj aak aam aao aas ab- aba abb abc abd abe abj abk abm abo abs ac- aca acb acc acd ace acj ack acm aco acs ad- ada adb adc add ade adj adk adm ado ads aea aeb aec aed aee aej aek aem aeo aes aja ajb ajc ajd aje ajj ajk ajm ajo ajs aka akb akc akd ake akj akk akm ako aks ama amb amc amd ame amk amm amo ams aoa aob aoc aod aoe aoj aok aom aoo aos as- asa asb asc asd ase asj ask asm aso ass baa bab bac bad bae baj bak bam bao bas bba bbb bbc bbd bbe bbk bbm bbo bbs bca bcb bcc bcd bce bcj bck bcm bco bcs bda bdb bdc bdd bde bdj bdk bdm bdo bds be- bea beb bec bed bee bek bem beo bes bja bjc bjd bjj bjk bjm bjs bka bkb bkc bke bkk bkm bko bks bma bmb bmc bmd bme bmj bmk bmm bmo bms boa bob boc bod boe boj bok bom boo bos bsa bsb bsc bsd bse bsj bsk bsm bso bss c-- c-j caa cab cac cad cae caj cak cam cao cas cba cbb cbc cbd cbe cbj cbk cbm cbo cbs cca ccb ccc ccd cce ccj cck ccm cco ccs cda cdb cdc cdd cde cdj cdk cdm cdo cds ce- cea ceb cec ced cee cej cek cem ceo ces cja cjb cjc cjd cjk cjs cka ckb ckc ckd ckm cko cks cma cmb cmc cmd cme cmj cmk cmm cmo cms co- coa cob coc cod coe coj cok com coo cos csa csb csc csd cse csj csk csm cso css daa dab dac dad dae daj dak dam dao das dba dbb dbc dbd dbe dbk dbm dbo dbs dca dcb dcc dcd dce dck dcm dco dcs dda ddb ddc ddd dde ddk ddm ddo dds de- dea deb dec ded dee dej dek dem deo des dj- dja djb djc djd dje djk djm djo djs dka dkb dkc dke dkk dkm dko dks dma dmb dmc dmd dme dmk dmm dmo dms doa dob doc dod doe doj dok dom doo dos dsa dsb dsc dsd dse dsj dsk dsm dso dss eaa eab eac ead eae eaj eak eam eao eas eba ebb ebc ebd ebe ebj ebk ebm ebo ebs ec- eca ecb ecc ecd ece ecj eck ecm eco ecs ed- eda edb edc edd ede edj edk edm edo eds eea eeb eec eed eee eek eem eeo ees eja ejc ejd ejo eka ekb ekc ekd eke eko eks em- ema emb emc emd eme emk emm emo ems eo- eoa eob eoc eod eoe eok eom eoo eos es- esa esb esc esd ese esk esm eso ess j-d jaa jab jac jad jae jaj jak jam jao jas jba jbc jbj jbk jbm jbo jbs jca jcb jcc jcd jce jck jcm jco jcs jda jdb jdc jde jdm jdo jds jea jeb jec jed jee jej jek jem jeo jes jja jjb jjc jjj jjk jjs jka jkb jkk jkm jko jks jma jmb jmc jmd jme jmj jmm jmo jms joa job joc jod joe joj jok jom joo jos jsa jsb jsc jsd jse jsj jsk jsm jso jss ka- kaa kab kac kad kae kaj kak kam kao kas kba kbb kbc kbd kbe kbk kbm kbo kbs kca kcb kcc kcd kce kck kcm kcs kda kdb kdc kde kdk kdm kdo kds ke- kea keb kec ked kee kek kem keo kes kjb kjc kje kjs kkb kkc kke kkk kkm kks kma kmb kmc kmd kme kmj kmk kmm kmo kms koa kob koc kod koe kok kom koo kos ksa ksb ksc ksd kse ksk ksm kso kss m-o maa mab mac mad mae maj mak mam mao mas mba mbb mbc mbd mbe mbj mbk mbm mbo mbs mc- mca mcb mcc mcd mce mck mcm mco mcs mda mdb mdc mdd mde mdj mdk mdm mdo mds mea meb mec med mee mej mek mem meo mes mjb mjc mjd mje mjj mjk mjm mjs mka mkb mkc mkd mke mkk mkm mko mks mma mmb mmc mmd mme mmj mmk mmm mmo mms moa mob moc mod moe mok mom moo mos msa msb msc msd mse msj msk msm mso mss oaa oab oac oad oae oaj oak oam oao oas ob- oba obb obc obd obe obj obk obm obo obs oc- oca ocb occ ocd ocj ock ocm oco ocs oda odb odc odd ode odm odo ods oea oeb oec oed oee oem oeo oes oja ojb ojc ojd oje ojm ojo ojs oka okb okc okd oke okj okk oko oks om- oma omb omc omd ome omj omm omo oms oo- ooa oob ooc ood ook oom ooo oos os- osa osb osc osd ose osj osk osm oso oss saa sab sac sad sae saj sak sam sao sas sba sbb sbc sbd sbe sbj sbk sbm sbo sbs sca scb scc scd sce scj sck scm sco scs sda sdb sdc sdd sde sdj sdk sdm sdo sds se- sea seb sec sed see sej sek sem seo ses sja sjb sjc sjd sje sjj sjk sjm sjs sk- ska skb skc skd ske skj skk skm sko sks sma smb smc smd sme smk smm smo sms soa sob soc sod soe soj sok som soo sos ss- ssa ssb ssc ssd sse ssj ssk ssm sso sss