a-a a-b a-c aaa aab aac aah aaj aao aas ab- aba abb abc abh abj abo abs ac- aca acb acc ach acj aco acs aha ahb ahc ahh ahj aho ahs aja ajb ajc ajh ajj ajo ajs aoa aob aoc aoh aoj aoo aos as- asa asb asc ash asj aso ass baa bab bac bah baj bao bas bba bbb bbc bbh bbo bbs bca bcb bcc bch bcj bco bcs bha bhb bhc bhh bhj bho bhs bja bjc bjj bjs boa bob boc boh boj boo bos bsa bsb bsc bsh bsj bso bss c-- c-j caa cab cac cah caj cao cas cba cbb cbc cbh cbj cbo cbs cca ccb ccc cch ccj cco ccs ch- cha chb chc chh cho chs cja cjb cjc cjs co- coa cob coc coh coj coo cos csa csb csc csh csj cso css haa hab hac hah haj hao has hba hbb hbc hbh hbj hbo hbs hca hcb hcc hch hcj hco hcs hha hhb hhc hhh hhj hho hhs hja hjo hjs hoa hob hoc hoh hoo hos hsa hsb hsc hsh hsj hss jaa jab jac jah jaj jao jas jba jbc jbj jbo jbs jca jcb jcc jch jco jcs jha jhc jhj jho jhs jja jjb jjc jjj jjs joa job joc joh joj joo jos jsa jsb jsc jsh jsj jso jss oaa oab oac oah oaj oao oas ob- oba obb obc obh obj obo obs oc- oca ocb occ och ocj oco ocs oha ohc ohh oho ohs oja ojb ojc ojo ojs oo- ooa oob ooc ooh ooo oos os- osa osb osc osh osj oso oss saa sab sac sah saj sao sas sba sbb sbc sbh sbj sbo sbs sca scb scc sch scj sco scs sh- sha shb shc shh sho shs sja sjb sjc sjh sjj sjs soa sob soc soh soj soo sos ss- ssa ssb ssc ssh ssj sso sss