a-a a-b aaa aab aad aag aah aan aao aas ab- aba abb abd abg abh abn abo abs ad- ada adb add adg adh adn ado ads ag- aga agb agd agg agh agn ago ags aha ahb ahd ahg ahh ahn aho ahs an- ana anb and ang anh ann ano ans aoa aob aod aog aoh aon aoo aos as- asa asb asd asg ash asn aso ass baa bab bad bag bah ban bao bas bba bbb bbd bbg bbh bbn bbo bbs bda bdb bdd bdg bdh bdo bds bga bgb bgd bgg bgh bgn bgo bgs bha bhb bhd bhg bhh bho bhs bna bnb bnd bng bnn bno bns boa bob bod bog boh bon boo bos bsa bsb bsd bsg bsh bsn bso bss daa dab dad dag dah dan dao das dba dbb dbd dbg dbh dbn dbo dbs dda ddb ddd ddg ddh ddn ddo dds dga dgd dgg dgh dgn dgs dh- dha dhb dhd dhh dho dhs dna dnb dnd dng dnh dnn dno dns doa dob dod dog doh don doo dos dsa dsb dsd dsg dsh dsn dso dss g-d gaa gab gad gag gah gan gao gas gba gbd gbg gbh gbn gbo gbs gda gdb gdd gdh gdn gdo gds gga ggb ggd ggg ggh ggn ggo ggs gha ghb ghd ghg ghh ghn gho ghs gna gnb gnd gnn gno gns goa gob god gog goh gon goo gos gsa gsb gsd gsg gsn gso gss haa hab had hag hah han hao has hba hbb hbd hbg hbh hbn hbo hbs hda hdb hdd hdg hdh hdn hdo hds hga hgb hgg hgh hgn hgo hgs hha hhb hhd hhg hhh hhn hho hhs hna hnb hnd hng hnh hnn hno hns hoa hob hod hog hoh hon hoo hos hsa hsb hsd hsg hsh hsn hss naa nab nad nag nah nan nao nas nba nbb nbd nbg nbn nbo nbs nda ndb ndd ndg ndh ndn ndo nds nga ngb ngd ngg ngh ngn ngo ngs nha nhb nhd nhg nhh nhn nhs nna nnb nng nnh nnn nno nns no- noa nob nod nog noh non noo nos nsa nsb nsd nsg nsh nsn nso nss oaa oab oad oag oah oan oao oas ob- oba obb obd obg obh obn obo obs oda odb odd odg odh odn odo ods oga ogd ogg ogh ogn ogo ogs oha ohd ohg ohh ohn oho ohs on- ona onb ond ong onh onn ono ons oo- ooa oob ood oog ooh oon ooo oos os- osa osb osd osg osh osn oso oss saa sab sad sag sah san sao sas sba sbb sbd sbg sbh sbn sbo sbs sda sdb sdd sdg sdh sdn sdo sds sga sgb sgd sgg sgh sgn sgo sgs sh- sha shb shd shg shh shn sho shs sna snb snd sng snn sno sns soa sob sod sog soh son soo sos ss- ssa ssb ssd ssg ssh ssn sso sss