a-a a-b aaa aab aag aah aam aan aas ab- aba abb abg abh abm abn abs ag- aga agb agg agh agm agn ags aha ahb ahg ahh ahm ahn ahs ama amb amg amh amm amn ams an- ana anb ang anh anm ann ans as- asa asb asg ash asm asn ass baa bab bag bah bam ban bas bba bbb bbg bbh bbm bbn bbs bga bgb bgg bgh bgm bgn bgs bha bhb bhg bhh bhm bhs bma bmb bmg bmh bmm bmn bms bna bnb bng bnn bns bsa bsb bsg bsh bsm bsn bss gaa gab gag gah gam gan gas gba gbg gbh gbm gbn gbs gga ggb ggg ggh ggm ggn ggs gha ghb ghg ghh ghn ghs gma gmb gmg gmh gmm gmn gms gna gnb gnm gnn gns gsa gsb gsg gsm gsn gss haa hab hag hah ham han has hba hbb hbg hbh hbm hbn hbs hga hgb hgg hgh hgm hgn hgs hha hhb hhg hhh hhm hhn hhs hma hmb hmg hmh hmm hms hna hnb hng hnh hnn hns hsa hsb hsg hsh hsm hsn hss maa mab mag mah mam man mas mba mbb mbg mbh mbm mbs mga mgb mgh mgm mgn mgs mha mhg mhh mhm mhn mhs mma mmb mmg mmh mmm mmn mms mna mnb mng mnm mnn mns msa msb msg msh msm msn mss naa nab nag nah nam nan nas nba nbb nbg nbm nbn nbs nga ngb ngg ngh ngm ngn ngs nha nhb nhg nhh nhm nhn nhs nma nmb nmg nmh nmm nmn nms nna nnb nng nnh nnm nnn nns nsa nsb nsg nsh nsm nsn nss saa sab sag sah sam san sas sba sbb sbg sbh sbm sbn sbs sga sgb sgg sgh sgm sgn sgs sh- sha shb shg shh shm shn shs sma smb smg smh smm smn sms sna snb sng snm snn sns ss- ssa ssb ssg ssh ssm ssn sss