a-a a-b aaa aab aae aah aaj aao aas ab- aba abb abe abh abj abo abs aea aeb aee aeh aej aeo aes aha ahb ahe ahh ahj aho ahs aja ajb aje ajh ajj ajo ajs aoa aob aoe aoh aoj aoo aos as- asa asb ase ash asj aso ass baa bab bae bah baj bao bas bba bbb bbe bbh bbo bbs be- bea beb bee beh beo bes bha bhb bhe bhh bhj bho bhs bja bjj bjs boa bob boe boh boj boo bos bsa bsb bse bsh bsj bso bss eaa eab eae eah eaj eao eas eba ebb ebe ebh ebj ebo ebs eea eeb eee eeo ees eha ehb ehe ehh eho ehs eja ejo eo- eoa eob eoe eoh eoo eos es- esa esb ese esh eso ess haa hab hae hah haj hao has hba hbb hbe hbh hbj hbo hbs he- hea heb hee heh hej heo hes hha hhb hhe hhh hhj hho hhs hja hjo hjs hoa hob hoe hoh hoo hos hsa hsb hse hsh hsj hss jaa jab jae jah jaj jao jas jba jbj jbo jbs jea jeb jee jeh jej jeo jes jha jhe jhj jho jhs jja jjb jjj jjs joa job joe joh joj joo jos jsa jsb jse jsh jsj jso jss oaa oab oae oah oaj oao oas ob- oba obb obe obh obj obo obs oea oeb oee oeh oeo oes oha ohe ohh oho ohs oja ojb oje ojo ojs oo- ooa oob ooh ooo oos os- osa osb ose osh osj oso oss saa sab sae sah saj sao sas sba sbb sbe sbh sbj sbo sbs se- sea seb see seh sej seo ses sh- sha shb she shh sho shs sja sjb sje sjh sjj sjs soa sob soe soh soj soo sos ss- ssa ssb sse ssh ssj sso sss