a-a a-b aaa aab aad aah aam aan aao aar ab- aba abb abd abh abm abn abo abr ad- ada adb add adh adm adn ado adr aha ahb ahd ahh ahm ahn aho ahr ama amb amd amh amm amn amo amr an- ana anb and anh anm ann ano anr aoa aob aod aoh aom aon aoo aor ar- ara arb ard arh arm arn aro arr baa bab bad bah bam ban bao bar bba bbb bbd bbh bbm bbn bbo bbr bda bdb bdd bdh bdm bdo bdr bha bhb bhd bhh bhm bho bhr bma bmb bmd bmh bmm bmn bmo bmr bna bnb bnd bnn bno bnr boa bob bod boh bom bon boo bor bra brb brd brh brm brn bro brr daa dab dad dah dam dan dao dar dba dbb dbd dbh dbm dbn dbo dbr dda ddb ddd ddh ddm ddn ddo ddr dh- dha dhb dhd dhh dhm dho dhr dma dmb dmd dmh dmm dmn dmo dmr dna dnb dnd dnh dnm dnn dno dnr doa dob dod doh dom don doo dor dra drb drd drm drn dro drr haa hab had hah ham han hao har hba hbb hbd hbh hbm hbn hbo hbr hda hdb hdd hdh hdm hdn hdo hdr hha hhb hhd hhh hhm hhn hho hhr hma hmb hmd hmh hmm hmo hmr hna hnb hnd hnh hnn hno hoa hob hod hoh hom hon hoo hor hr- hra hrb hrd hrh hrm hrn hro hrr m-o m-r maa mab mad mah mam man mao mar mba mbb mbd mbh mbm mbo mbr mda mdb mdd mdh mdm mdn mdo mdr mha mhd mhh mhm mhn mho mhr mma mmb mmd mmh mmm mmn mmo mmr mna mnb mnm mnn mno mnr moa mob mod moh mom mon moo mor mra mrb mrd mrh mrm mrn mro mrr naa nab nad nah nam nan nao nar nba nbb nbd nbm nbn nbo nbr nda ndb ndd ndh ndm ndn ndo ndr nha nhb nhd nhh nhm nhn nhr nma nmb nmd nmh nmm nmn nmo nmr nna nnb nnh nnm nnn nno no- noa nob nod noh nom non noo nor nra nrb nrd nrm nrn nro nrr oaa oab oad oah oam oan oao oar ob- oba obb obd obh obm obn obo obr oda odb odd odh odm odn odo odr oha ohd ohh ohm ohn oho ohr om- oma omb omd omh omm omn omo omr on- ona onb ond onh onn ono onr oo- ooa oob ood ooh oom oon ooo oor or- ora orb ord orh orm orn oro orr ra- raa rab rad rah ram ran rao rar rba rbb rbd rbh rbm rbn rbo rbr rda rdb rdd rdh rdm rdn rdo rdr rh- rha rhb rhd rhh rhm rhn rho rhr rma rmb rmd rmh rmm rmn rmo rmr rna rnb rnd rnh rnm rnn rno rnr roa rob rod roh rom ron roo ror rra rrb rrd rrh rrm rrn rrr