a-a a-b a-i a-t aaa aab aad aae aai aam aao aat ab- aba abb abd abe abi abm abo abt ad- ada adb add ade adi adm ado adt aea aeb aed aee aei aem aeo aet ai- aia aib aid aie aii aim aio ait ama amb amd ame ami amm amo amt aoa aob aod aoe aoi aom aoo aot at- ata atb atd ate ati atm ato att baa bab bad bae bai bam bao bat bba bbb bbd bbe bbi bbm bbo bbt bda bdb bdd bde bdi bdm bdo bdt be- bea beb bed bee bei bem beo bet bi- bia bib bid bie bii bim bio bit bma bmb bmd bme bmi bmm bmo bmt boa bob bod boe boi bom boo bot bta btb btd bte bti btm bto btt daa dab dad dae dai dam dao dat dba dbb dbd dbe dbi dbm dbo dbt dda ddb ddd dde ddi ddm ddo ddt de- dea deb ded dee dei dem deo det di- dia dib did die dii dim dio dit dma dmb dmd dme dmi dmm dmo dmt doa dob dod doe doi dom doo dot dta dtb dtd dte dti dtm dto dtt eaa eab ead eae eai eam eao eat eba ebb ebd ebe ebi ebm ebo ebt ed- eda edb edd ede edi edm edo edt eea eeb eed eee eem eeo eet eia eib eid eie eii eim eio eit em- ema emb emd eme emi emm emo emt eo- eoa eob eod eoe eoi eom eoo eot eta etb etd ete eti etm eto ett i-d ia- iaa iab iad iae iai iam iao iat iba ibb ibd ibe ibi ibm ibo ibt ida idb idd ide idi idm ido idt ie- iea ied iee iei iem iet iia iib iid iie iii iim iio iit im- ima imb imd ime imi imm imo imt io- ioa iob iod ioe ioi iom ioo iot ita itb itd ite iti itm ito itt m-o maa mab mad mae mai mam mao mat mba mbb mbd mbe mbi mbm mbo mbt mda mdb mdd mde mdi mdm mdo mdt mea meb med mee mei mem meo met mi- mia mib mid mie mii mim mio mit mma mmb mmd mme mmi mmm mmo mmt moa mob mod moe moi mom moo mot mta mtb mtd mte mti mtm mto mtt o-i oaa oab oad oae oai oam oao oat ob- oba obb obd obe obi obm obo obt oda odb odd ode odi odm odo odt oea oeb oed oee oei oem oeo oet oia oib oid oie oii oim oio oit om- oma omb omd ome omi omm omo omt oo- ooa oob ood ooi oom ooo oot ot- ota otb otd ote oti otm oto ott taa tab tad tae tai tam tao tat tba tbb tbd tbe tbi tbm tbo tbt tda tdb tdd tde tdi tdm tdo tdt te- tea teb ted tee tei tem teo tet tia tib tid tie tii tim tio tit tma tmb tmd tme tmi tmm tmo tmt to- toa tob tod toe toi tom too tot tta ttb ttd tte tti ttm tto ttt