a-a a-b a-i a-t aaa aab aad aai aam aao aas aat ab- aba abb abd abi abm abo abs abt ad- ada adb add adi adm ado ads adt ai- aia aib aid aii aim aio ais ait ama amb amd ami amm amo ams amt aoa aob aod aoi aom aoo aos aot as- asa asb asd asi asm aso ass ast at- ata atb atd ati atm ato ats att baa bab bad bai bam bao bas bat bba bbb bbd bbi bbm bbo bbs bbt bda bdb bdd bdi bdm bdo bds bdt bi- bia bib bid bii bim bio bis bit bma bmb bmd bmi bmm bmo bms bmt boa bob bod boi bom boo bos bot bsa bsb bsd bsi bsm bso bss bst bta btb btd bti btm bto bts btt daa dab dad dai dam dao das dat dba dbb dbd dbi dbm dbo dbs dbt dda ddb ddd ddi ddm ddo dds ddt di- dia dib did dii dim dio dis dit dma dmb dmd dmi dmm dmo dms dmt doa dob dod doi dom doo dos dot dsa dsb dsd dsi dsm dso dss dst dta dtb dtd dti dtm dto dts dtt i-d ia- iaa iab iad iai iam iao ias iat iba ibb ibd ibi ibm ibo ibs ibt ida idb idd idi idm ido ids idt iia iib iid iii iim iio iis iit im- ima imb imd imi imm imo ims imt io- ioa iob iod ioi iom ioo ios iot is- isa isb isd isi ism iso iss ist ita itb itd iti itm ito its itt m-o maa mab mad mai mam mao mas mat mba mbb mbd mbi mbm mbo mbs mbt mda mdb mdd mdi mdm mdo mds mdt mi- mia mib mid mii mim mio mis mit mma mmb mmd mmi mmm mmo mms mmt moa mob mod moi mom moo mos mot msa msb msd msi msm mso mss mst mta mtb mtd mti mtm mto mts mtt o-i oaa oab oad oai oam oao oas oat ob- oba obb obd obi obm obo obs obt oda odb odd odi odm odo ods odt oia oib oid oii oim oio ois oit om- oma omb omd omi omm omo oms omt oo- ooa oob ood ooi oom ooo oos oot os- osa osb osd osi osm oso oss ost ot- ota otb otd oti otm oto ots ott saa sab sad sai sam sao sas sat sba sbb sbd sbi sbm sbo sbs sbt sda sdb sdd sdi sdm sdo sds sdt sia sib sid sii sim sio sis sit sma smb smd smi smm smo sms smt soa sob sod soi som soo sos sot ss- ssa ssb ssd ssi ssm sso sss sst sta stb std sti stm sto sts stt taa tab tad tai tam tao tas tat tba tbb tbd tbi tbm tbo tbs tbt tda tdb tdd tdi tdm tdo tds tdt tia tib tid tii tim tio tis tit tma tmb tmd tmi tmm tmo tms tmt to- toa tob tod toi tom too tos tot tsa tsb tsd tsi tsm tso tss tst tta ttb ttd tti ttm tto tts ttt