a-a a-b a-c a-t aaa aab aac aad aae aag aao aas aat aau ab- aba abb abc abd abe abg abo abs abt abu ac- aca acb acc acd ace acg aco acs act acu ad- ada adb adc add ade adg ado ads adt adu aea aeb aec aed aee aeg aeo aes aet aeu ag- aga agb agc agd age agg ago ags agt agu aoa aob aoc aod aoe aog aoo aos aot aou as- asa asb asc asd ase asg aso ass ast asu at- ata atb atc atd ate atg ato ats att atu au- aua aub auc aud aue aug auo aus aut b-u baa bab bac bad bae bag bao bas bat bau bba bbb bbc bbd bbe bbg bbo bbs bbt bbu bca bcb bcc bcd bce bcg bco bcs bct bcu bda bdb bdc bdd bde bdg bdo bds bdt bdu be- bea beb bec bed bee beg beo bes bet beu bga bgb bgc bgd bge bgg bgo bgs bgt bgu boa bob boc bod boe bog boo bos bot bou bsa bsb bsc bsd bse bsg bso bss bst bsu bta btb btc btd bte btg bto bts btt btu bua bub buc bud bue bug buo bus but buu c-- caa cab cac cad cae cag cao cas cat cau cba cbb cbc cbd cbe cbg cbo cbs cbt cbu cca ccb ccc ccd cce ccg cco ccs cct ccu cda cdb cdc cdd cde cdg cdo cds cdt cdu ce- cea ceb cec ced cee ceg ceo ces cet ceu cga cgb cgc cgd cge cgg cgo cgs cgt cgu co- coa cob coc cod coe cog coo cos cot cou csa csb csc csd cse csg cso css cst csu cta ctb ctc ctd cte ctg cto cts ctt ctu cua cub cuc cud cue cug cuo cus cut cuu daa dab dac dad dae dag dao das dat dau dba dbb dbc dbd dbe dbg dbo dbs dbt dbu dca dcb dcc dcd dce dcg dco dcs dct dcu dda ddb ddc ddd dde ddg ddo dds ddt ddu de- dea deb dec ded dee deg deo des det deu dga dgc dgd dge dgg dgs dgt dgu doa dob doc dod doe dog doo dos dot dou dsa dsb dsc dsd dse dsg dso dss dst dsu dta dtb dtc dtd dte dtg dto dts dtt dtu dua dub duc dud due dug duo dus dut eaa eab eac ead eae eag eao eas eat eau eba ebb ebc ebd ebe ebg ebo ebs ebt ebu ec- eca ecb ecc ecd ece ecg eco ecs ect ecu ed- eda edb edc edd ede edg edo eds edt edu eea eeb eec eed eee eeg eeo ees eet ega egb egc egd ege egg ego egs egt egu eo- eoa eob eoc eod eoe eog eoo eos eot eou es- esa esb esc esd ese esg eso ess est esu eta etb etc etd ete etg eto ets ett etu eu- eua eub euc eud eue eug eus eut g-d gaa gab gac gad gae gag gao gas gat gau gba gbc gbd gbe gbg gbo gbs gbt gbu gca gcb gcc gcd gce gcg gco gcs gct gcu gda gdb gdc gdd gde gdo gds gdt gdu ge- gea geb gec ged gee geg geo ges get geu gga ggb ggc ggd ggg ggo ggs ggt ggu goa gob goc god goe gog goo gos got gou gsa gsb gsc gsd gse gsg gso gss gst gsu gta gtb gtc gtd gte gtg gto gts gtt gtu gu- gua gub guc gud gue gug guo gus gut guu oaa oab oac oad oae oag oao oas oat oau ob- oba obb obc obd obe obg obo obs obt obu oc- oca ocb occ ocd ocg oco ocs oct ocu oda odb odc odd ode odg odo ods odt odu oea oeb oec oed oee oeg oeo oes oet oga ogc ogd oge ogg ogo ogs ogt oo- ooa oob ooc ood oog ooo oos oot os- osa osb osc osd ose osg oso oss ost osu ot- ota otb otc otd ote otg oto ots ott otu ou- oua ouc oud oue ouo ous out saa sab sac sad sae sag sao sas sat sau sba sbb sbc sbd sbe sbg sbo sbs sbt sbu sca scb scc scd sce scg sco scs sct scu sda sdb sdc sdd sde sdg sdo sds sdt sdu se- sea seb sec sed see seg seo ses set seu sga sgb sgc sgd sge sgg sgo sgs sgt sgu soa sob soc sod soe sog soo sos sot sou ss- ssa ssb ssc ssd sse ssg sso sss sst ssu sta stb stc std ste stg sto sts stt stu sua sub suc sud sue sug suo sus sut suu taa tab tac tad tae tag tao tas tat tau tba tbb tbc tbd tbe tbg tbo tbs tbt tbu tca tcb tcc tcd tce tcg tco tcs tct tcu tda tdb tdc tdd tde tdg tdo tds tdt tdu te- tea teb tec ted tee teg teo tes tet teu tga tgb tgc tge tgg tgo tgs tgt tgu to- toa tob toc tod toe tog too tos tot tou tsa tsb tsc tsd tse tsg tso tss tst tsu tta ttb ttc ttd tte ttg tto tts ttt ttu tua tub tuc tud tue tug tuo tus tut tuu ua- uaa uab uac uad uae uag uao uas uat uau uba ubb ubc ube ubg ubo ubs ubt ubu uca ucb ucc ucd uce ucg uco ucs uct ucu uda udb udc udd ude udg udo uds udt udu uea ueb uec ued uee ueg ues uet uga ugb ugc uge ugg ugo ugs ugt ugu uoa uob uoc uod uoe uog uoo uos uot usa usb usc usd use usg uso uss ust usu uta utb utc utd ute uto uts utt utu