a-a a-b aaa aab aad aae aag aam aan aao ab- aba abb abd abe abg abm abn abo ad- ada adb add ade adg adm adn ado aea aeb aed aee aeg aem aen aeo ag- aga agb agd age agg agm agn ago ama amb amd ame amg amm amn amo an- ana anb and ane ang anm ann ano aoa aob aod aoe aog aom aon aoo baa bab bad bae bag bam ban bao bba bbb bbd bbe bbg bbm bbn bbo bda bdb bdd bde bdg bdm bdo be- bea beb bed bee beg bem ben beo bga bgb bgd bge bgg bgm bgn bgo bma bmb bmd bme bmg bmm bmn bmo bna bnb bnd bne bng bnn bno boa bob bod boe bog bom bon boo daa dab dad dae dag dam dan dao dba dbb dbd dbe dbg dbm dbn dbo dda ddb ddd dde ddg ddm ddn ddo de- dea deb ded dee deg dem den deo dga dgd dge dgg dgm dgn dma dmb dmd dme dmg dmm dmn dmo dna dnb dnd dne dng dnm dnn dno doa dob dod doe dog dom don doo eaa eab ead eae eag eam ean eao eba ebb ebd ebe ebg ebm ebn ebo ed- eda edb edd ede edg edm edn edo eea eeb eed eee eeg eem een eeo ega egb egd ege egg egm egn ego em- ema emb emd eme emg emm emn emo en- ena enb end ene eng enm enn eno eo- eoa eob eod eoe eog eom eon eoo g-d gaa gab gad gae gag gam gan gao gba gbd gbe gbg gbm gbn gbo gda gdb gdd gde gdm gdn gdo ge- gea geb ged gee geg gem gen geo gga ggb ggd ggg ggm ggn ggo gma gmb gmd gme gmg gmm gmn gmo gna gnb gnd gne gnm gnn gno goa gob god goe gog gom gon goo m-o maa mab mad mae mag mam man mao mba mbb mbd mbe mbg mbm mbo mda mdb mdd mde mdg mdm mdn mdo mea meb med mee meg mem men meo mga mgb mgd mge mgm mgn mgo mma mmb mmd mme mmg mmm mmn mmo mna mnb mne mng mnm mnn mno moa mob mod moe mog mom mon moo naa nab nad nae nag nam nan nao nba nbb nbd nbe nbg nbm nbn nbo nda ndb ndd nde ndg ndm ndn ndo ne- nea neb ned nee neg nem nen neo nga ngb ngd nge ngg ngm ngn ngo nma nmb nmd nme nmg nmm nmn nmo nna nnb nne nng nnm nnn nno no- noa nob nod noe nog nom non noo oaa oab oad oae oag oam oan oao ob- oba obb obd obe obg obm obn obo oda odb odd ode odg odm odn odo oea oeb oed oee oeg oem oen oeo oga ogd oge ogg ogn ogo om- oma omb omd ome omg omm omn omo on- ona onb ond one ong onn ono oo- ooa oob ood oog oom oon ooo