a-a a-b a-t aaa aab aad aae aag aam aas aat ab- aba abb abd abe abg abm abs abt ad- ada adb add ade adg adm ads adt aea aeb aed aee aeg aem aes aet ag- aga agb agd age agg agm ags agt ama amb amd ame amg amm ams amt as- asa asb asd ase asg asm ass ast at- ata atb atd ate atg atm ats att baa bab bad bae bag bam bas bat bba bbb bbd bbe bbg bbm bbs bbt bda bdb bdd bde bdg bdm bds bdt be- bea beb bed bee beg bem bes bet bga bgb bgd bge bgg bgm bgs bgt bma bmb bmd bme bmg bmm bms bmt bsa bsb bsd bse bsg bsm bss bst bta btb btd bte btg btm bts btt daa dab dad dae dag dam das dat dba dbb dbd dbe dbg dbm dbs dbt dda ddb ddd dde ddg ddm dds ddt de- dea deb ded dee deg dem des det dga dgd dge dgg dgm dgs dgt dma dmb dmd dme dmg dmm dms dmt dsa dsb dsd dse dsg dsm dss dst dta dtb dtd dte dtg dtm dts dtt eaa eab ead eae eag eam eas eat eba ebb ebd ebe ebg ebm ebs ebt ed- eda edb edd ede edg edm eds edt eea eeb eed eee eeg eem ees eet ega egb egd ege egg egm egs egt em- ema emb emd eme emg emm ems emt es- esa esb esd ese esg esm ess est eta etb etd ete etg etm ets ett g-d gaa gab gad gae gag gam gas gat gba gbd gbe gbg gbm gbs gbt gda gdb gdd gde gdm gds gdt ge- gea geb ged gee geg gem ges get gga ggb ggd ggg ggm ggs ggt gma gmb gmd gme gmg gmm gms gmt gsa gsb gsd gse gsg gsm gss gst gta gtb gtd gte gtg gtm gts gtt maa mab mad mae mag mam mas mat mba mbb mbd mbe mbg mbm mbs mbt mda mdb mdd mde mdg mdm mds mdt mea meb med mee meg mem mes met mga mgb mgd mge mgm mgs mgt mma mmb mmd mme mmg mmm mms mmt msa msb msd mse msg msm mss mst mta mtb mtd mte mtg mtm mts mtt saa sab sad sae sag sam sas sat sba sbb sbd sbe sbg sbm sbs sbt sda sdb sdd sde sdg sdm sds sdt se- sea seb sed see seg sem ses set sga sgb sgd sge sgg sgm sgs sgt sma smb smd sme smg smm sms smt ss- ssa ssb ssd sse ssg ssm sss sst sta stb std ste stg stm sts stt taa tab tad tae tag tam tas tat tba tbb tbd tbe tbg tbm tbs tbt tda tdb tdd tde tdg tdm tds tdt te- tea teb ted tee teg tem tes tet tga tgb tge tgg tgm tgs tgt tma tmb tmd tme tmg tmm tms tmt tsa tsb tsd tse tsg tsm tss tst tta ttb ttd tte ttg ttm tts ttt