a-a a-b a-t aaa aab aad aae aag aas aat aau ab- aba abb abd abe abg abs abt abu ad- ada adb add ade adg ads adt adu aea aeb aed aee aeg aes aet aeu ag- aga agb agd age agg ags agt agu as- asa asb asd ase asg ass ast asu at- ata atb atd ate atg ats att atu au- aua aub aud aue aug aus aut b-u baa bab bad bae bag bas bat bau bba bbb bbd bbe bbg bbs bbt bbu bda bdb bdd bde bdg bds bdt bdu be- bea beb bed bee beg bes bet beu bga bgb bgd bge bgg bgs bgt bgu bsa bsb bsd bse bsg bss bst bsu bta btb btd bte btg bts btt btu bua bub bud bue bug bus but buu daa dab dad dae dag das dat dau dba dbb dbd dbe dbg dbs dbt dbu dda ddb ddd dde ddg dds ddt ddu de- dea deb ded dee deg des det deu dga dgd dge dgg dgs dgt dgu dsa dsb dsd dse dsg dss dst dsu dta dtb dtd dte dtg dts dtt dtu dua dub dud due dug dus dut eaa eab ead eae eag eas eat eau eba ebb ebd ebe ebg ebs ebt ebu ed- eda edb edd ede edg eds edt edu eea eeb eed eee eeg ees eet ega egb egd ege egg egs egt egu es- esa esb esd ese esg ess est esu eta etb etd ete etg ets ett etu eu- eua eub eud eue eug eus eut g-d gaa gab gad gae gag gas gat gau gba gbd gbe gbg gbs gbt gbu gda gdb gdd gde gds gdt gdu ge- gea geb ged gee geg ges get geu gga ggb ggd ggg ggs ggt ggu gsa gsb gsd gse gsg gss gst gsu gta gtb gtd gte gtg gts gtt gtu gu- gua gub gud gue gug gus gut guu saa sab sad sae sag sas sat sau sba sbb sbd sbe sbg sbs sbt sbu sda sdb sdd sde sdg sds sdt sdu se- sea seb sed see seg ses set seu sga sgb sgd sge sgg sgs sgt sgu ss- ssa ssb ssd sse ssg sss sst ssu sta stb std ste stg sts stt stu sua sub sud sue sug sus sut suu taa tab tad tae tag tas tat tau tba tbb tbd tbe tbg tbs tbt tbu tda tdb tdd tde tdg tds tdt tdu te- tea teb ted tee teg tes tet teu tga tgb tge tgg tgs tgt tgu tsa tsb tsd tse tsg tss tst tsu tta ttb ttd tte ttg tts ttt ttu tua tub tud tue tug tus tut tuu ua- uaa uab uad uae uag uas uat uau uba ubb ube ubg ubs ubt ubu uda udb udd ude udg uds udt udu uea ueb ued uee ueg ues uet uga ugb uge ugg ugs ugt ugu usa usb usd use usg uss ust usu uta utb utd ute uts utt utu uua uue uug uus uut uuu