a-a a-b aaa aab aag aah aam aan aao aas ab- aba abb abg abh abm abn abo abs ag- aga agb agg agh agm agn ago ags aha ahb ahg ahh ahm ahn aho ahs ama amb amg amh amm amn amo ams an- ana anb ang anh anm ann ano ans aoa aob aog aoh aom aon aoo aos as- asa asb asg ash asm asn aso ass baa bab bag bah bam ban bao bas bba bbb bbg bbh bbm bbn bbo bbs bga bgb bgg bgh bgm bgn bgo bgs bha bhb bhg bhh bhm bho bhs bma bmb bmg bmh bmm bmn bmo bms bna bnb bng bnn bno bns boa bob bog boh bom bon boo bos bsa bsb bsg bsh bsm bsn bso bss gaa gab gag gah gam gan gao gas gba gbg gbh gbm gbn gbo gbs gga ggb ggg ggh ggm ggn ggo ggs gha ghb ghg ghh ghn gho ghs gma gmb gmg gmh gmm gmn gmo gms gna gnb gnm gnn gno gns goa gob gog goh gom gon goo gos gsa gsb gsg gsm gsn gso gss haa hab hag hah ham han hao has hba hbb hbg hbh hbm hbn hbo hbs hga hgb hgg hgh hgm hgn hgo hgs hha hhb hhg hhh hhm hhn hho hhs hma hmb hmg hmh hmm hmo hms hna hnb hng hnh hnn hno hns hoa hob hog hoh hom hon hoo hos hsa hsb hsg hsh hsm hsn hss m-o maa mab mag mah mam man mao mas mba mbb mbg mbh mbm mbo mbs mga mgb mgh mgm mgn mgo mgs mha mhg mhh mhm mhn mho mhs mma mmb mmg mmh mmm mmn mmo mms mna mnb mng mnm mnn mno mns moa mob mog moh mom mon moo mos msa msb msg msh msm msn mso mss naa nab nag nah nam nan nao nas nba nbb nbg nbm nbn nbo nbs nga ngb ngg ngh ngm ngn ngo ngs nha nhb nhg nhh nhm nhn nhs nma nmb nmg nmh nmm nmn nmo nms nna nnb nng nnh nnm nnn nno nns no- noa nob nog noh nom non noo nos nsa nsb nsg nsh nsm nsn nso nss oaa oab oag oah oam oan oao oas ob- oba obb obg obh obm obn obo obs oga ogg ogh ogn ogo ogs oha ohg ohh ohm ohn oho ohs om- oma omb omg omh omm omn omo oms on- ona onb ong onh onn ono ons oo- ooa oob oog ooh oom oon ooo oos os- osa osb osg osh osm osn oso oss saa sab sag sah sam san sao sas sba sbb sbg sbh sbm sbn sbo sbs sga sgb sgg sgh sgm sgn sgo sgs sh- sha shb shg shh shm shn sho shs sma smb smg smh smm smn smo sms sna snb sng snm snn sno sns soa sob sog soh som son soo sos ss- ssa ssb ssg ssh ssm ssn sso sss