a-a a-b a-i a-t aaa aab aad aai aam aao aar aat ab- aba abb abd abi abm abo abr abt ad- ada adb add adi adm ado adr adt ai- aia aib aid aii aim aio air ait ama amb amd ami amm amo amr amt aoa aob aod aoi aom aoo aor aot ar- ara arb ard ari arm aro arr art at- ata atb atd ati atm ato atr att baa bab bad bai bam bao bar bat bba bbb bbd bbi bbm bbo bbr bbt bda bdb bdd bdi bdm bdo bdr bdt bi- bia bib bid bii bim bio bir bit bma bmb bmd bmi bmm bmo bmr bmt boa bob bod boi bom boo bor bot bra brb brd bri brm bro brr brt bta btb btd bti btm bto btr btt daa dab dad dai dam dao dar dat dba dbb dbd dbi dbm dbo dbr dbt dda ddb ddd ddi ddm ddo ddr ddt di- dia dib did dii dim dio dir dit dma dmb dmd dmi dmm dmo dmr dmt doa dob dod doi dom doo dor dot dra drb drd dri drm dro drr drt dta dtb dtd dti dtm dto dtr dtt i-d ia- iaa iab iad iai iam iao iar iat iba ibb ibd ibi ibm ibo ibr ibt ida idb idd idi idm ido idr idt iia iib iid iii iim iio iir iit im- ima imb imd imi imm imo imt io- ioa iob iod ioi iom ioo ior iot ir- ira irb ird iri irm iro irr irt ita itb itd iti itm ito itt m-o m-r maa mab mad mai mam mao mar mat mba mbb mbd mbi mbm mbo mbr mbt mda mdb mdd mdi mdm mdo mdr mdt mi- mia mib mid mii mim mio mir mit mma mmb mmd mmi mmm mmo mmr mmt moa mob mod moi mom moo mor mot mra mrb mrd mri mrm mro mrr mrt mta mtb mtd mti mtm mto mtr mtt o-i oaa oab oad oai oam oao oar oat ob- oba obb obd obi obm obo obr obt oda odb odd odi odm odo odr odt oia oib oid oii oim oio oir oit om- oma omb omd omi omm omo omr omt oo- ooa oob ood ooi oom ooo oor oot or- ora orb ord ori orm oro orr ort ot- ota otb otd oti otm oto otr ott ra- raa rab rad rai ram rao rar rat rba rbb rbd rbi rbm rbo rbr rbt rda rdb rdd rdi rdm rdo rdr rdt ria rib rid rii rim rio rir rit rma rmb rmd rmi rmm rmo rmr rmt roa rob rod roi rom roo ror rot rra rrb rrd rri rrm rrr rrt rta rtb rtd rti rtm rto rtr rtt taa tab tad tai tam tao tar tat tba tbb tbd tbi tbm tbo tbr tbt tda tdb tdd tdi tdm tdo tdr tdt tia tib tid tii tim tio tir tit tma tmb tmd tmi tmm tmo tmr tmt to- toa tob tod toi tom too tor tot tra trb trd tri trm tro trr trt tta ttb ttd tti ttm tto ttr ttt