a-a a-b aaa aab aad aag aak aan aas ab- aba abb abd abg abk abn abs ad- ada adb add adg adk adn ads ag- aga agb agd agg agk agn ags aka akb akd akg akk akn aks an- ana anb and ang ank ann ans as- asa asb asd asg ask asn ass baa bab bad bag bak ban bas bba bbb bbd bbg bbk bbn bbs bda bdb bdd bdg bdk bds bga bgb bgd bgg bgk bgn bgs bka bkb bkg bkk bkn bks bna bnb bnd bng bnk bnn bns bsa bsb bsd bsg bsk bsn bss daa dab dad dag dak dan das dba dbb dbd dbg dbk dbn dbs dda ddb ddd ddg ddk ddn dds dga dgd dgg dgk dgn dgs dka dkb dkg dkk dks dna dnb dnd dng dnk dnn dns dsa dsb dsd dsg dsk dsn dss g-d gaa gab gad gag gak gan gas gba gbd gbg gbk gbn gbs gda gdb gdd gdk gdn gds gga ggb ggd ggg ggn ggs gka gkb gkd gkn gks gna gnb gnd gnn gns gsa gsb gsd gsg gsk gsn gss ka- kaa kab kad kag kak kan kas kba kbb kbd kbk kbn kbs kda kdb kdg kdk kds kga kgb kgd kgs kkb kkk kkn kks kn- kna knd kng knk knn ksa ksb ksd ksg ksk ksn kss naa nab nad nag nak nan nas nba nbb nbd nbg nbk nbn nbs nda ndb ndd ndg ndk ndn nds nga ngb ngd ngg ngk ngn ngs nka nkk nkn nks nna nnb nng nnk nnn nns nsa nsb nsd nsg nsk nsn nss saa sab sad sag sak san sas sba sbb sbd sbg sbk sbn sbs sda sdb sdd sdg sdk sdn sds sga sgb sgd sgg sgk sgn sgs sk- ska skb skd skg skk sks sna snb snd sng snk snn sns ss- ssa ssb ssd ssg ssk ssn sss