a-a a-b aaa aab aad aam aan aao aay ab- aba abb abd abm abn abo aby ad- ada adb add adm adn ado ady ama amb amd amm amn amo amy an- ana anb and anm ann ano any aoa aob aod aom aon aoo ay- aya ayd ayn ayo baa bab bad bam ban bao bay bba bbb bbd bbm bbn bbo bby bda bdb bdd bdm bdo bdy bma bmb bmd bmm bmn bmo bna bnb bnd bnn bno boa bob bod bom bon boo boy by- bya byd bym byn byo daa dab dad dam dan dao day dba dbb dbd dbm dbn dbo dby dda ddb ddd ddm ddn ddo ddy dma dmb dmd dmm dmn dmo dna dnb dnd dnm dnn dno dny doa dob dod dom don doo doy dy- dya dyb dyd dym dyn dyo dyy m-o maa mab mad mam man mao may mba mbb mbd mbm mbo mda mdb mdd mdm mdn mdo mdy mma mmb mmd mmm mmn mmo mna mnb mnm mnn mno moa mob mod mom mon moo moy my- mya myb myd mym myn myo naa nab nad nam nan nao nay nba nbb nbd nbm nbn nbo nda ndb ndd ndm ndn ndo ndy nma nmb nmd nmm nmn nmo nna nnb nnm nnn nno no- noa nob nod nom non noo noy nya nyd nym nyn nyo nyy oaa oab oad oam oan oao ob- oba obb obd obm obn obo oby oda odb odd odm odn odo om- oma omb omd omm omn omo omy on- ona onb ond onn ono ony oo- ooa oob ood oom oon ooo oya oyd oyo yaa yab yad yam yan yao yay ybm yby yda ydn ydo ydy yma ymm ymo yna ynd ynn yny yob yod yom yon yoo yoy yyb yyy