a-a a-b a-i aaa aab aad aai aam aan aao aar ab- aba abb abd abi abm abn abo abr ad- ada adb add adi adm adn ado adr ai- aia aib aid aii aim ain aio air ama amb amd ami amm amn amo amr an- ana anb and ani anm ann ano anr aoa aob aod aoi aom aon aoo aor ar- ara arb ard ari arm arn aro arr baa bab bad bai bam ban bao bar bba bbb bbd bbi bbm bbn bbo bbr bda bdb bdd bdi bdm bdo bdr bi- bia bib bid bii bim bin bio bir bma bmb bmd bmi bmm bmn bmo bmr bna bnb bnd bni bnn bno bnr boa bob bod boi bom bon boo bor bra brb brd bri brm brn bro brr daa dab dad dai dam dan dao dar dba dbb dbd dbi dbm dbn dbo dbr dda ddb ddd ddi ddm ddn ddo ddr di- dia dib did dii dim din dio dir dma dmb dmd dmi dmm dmn dmo dmr dna dnb dnd dni dnm dnn dno dnr doa dob dod doi dom don doo dor dra drb drd dri drm drn dro drr i-d ia- iaa iab iad iai iam ian iao iar iba ibb ibd ibi ibm ibn ibo ibr ida idb idd idi idm idn ido idr iia iib iid iii iim iin iio iir im- ima imb imd imi imm imn imo in- ina inb ind ini inm inn ino inr io- ioa iob iod ioi iom ion ioo ior ir- ira irb ird iri irm irn iro irr m-o m-r maa mab mad mai mam man mao mar mba mbb mbd mbi mbm mbo mbr mda mdb mdd mdi mdm mdn mdo mdr mi- mia mib mid mii mim min mio mir mma mmb mmd mmi mmm mmn mmo mmr mna mnb mni mnm mnn mno mnr moa mob mod moi mom mon moo mor mra mrb mrd mri mrm mrn mro mrr n-i naa nab nad nai nam nan nao nar nba nbb nbd nbi nbm nbn nbo nbr nda ndb ndd ndi ndm ndn ndo ndr nia nib nid nii nim nin nio nir nma nmb nmd nmi nmm nmn nmo nmr nna nnb nni nnm nnn nno no- noa nob nod noi nom non noo nor nra nrb nrd nri nrm nrn nro nrr o-i oaa oab oad oai oam oan oao oar ob- oba obb obd obi obm obn obo obr oda odb odd odi odm odn odo odr oia oib oid oii oim oin oio oir om- oma omb omd omi omm omn omo omr on- ona onb ond oni onn ono onr oo- ooa oob ood ooi oom oon ooo oor or- ora orb ord ori orm orn oro orr ra- raa rab rad rai ram ran rao rar rba rbb rbd rbi rbm rbn rbo rbr rda rdb rdd rdi rdm rdn rdo rdr ria rib rid rii rim rin rio rir rma rmb rmd rmi rmm rmn rmo rmr rna rnb rnd rni rnm rnn rno rnr roa rob rod roi rom ron roo ror rra rrb rrd rri rrm rrn rrr