a-a a-b a-c aaa aab aac aad aae aaf aag aas aau ab- aba abb abc abd abe abf abg abs abu ac- aca acb acc acd ace acf acg acs acu ad- ada adb adc add ade adf adg ads adu aea aeb aec aed aee aef aeg aes aeu af- afa afb afc afd afe aff afg afs afu ag- aga agb agc agd age agf agg ags agu as- asa asb asc asd ase asf asg ass asu au- aua aub auc aud aue auf aug aus b-u baa bab bac bad bae baf bag bas bau bba bbb bbc bbd bbe bbf bbg bbs bbu bca bcb bcc bcd bce bcf bcg bcs bcu bda bdb bdc bdd bde bdf bdg bds bdu be- bea beb bec bed bee bef beg bes beu bfa bfb bfc bfd bfe bff bfg bfs bfu bga bgb bgc bgd bge bgf bgg bgs bgu bsa bsb bsc bsd bse bsf bsg bss bsu bua bub buc bud bue buf bug bus buu c-- caa cab cac cad cae caf cag cas cau cba cbb cbc cbd cbe cbf cbg cbs cbu cca ccb ccc ccd cce ccf ccg ccs ccu cda cdb cdc cdd cde cdf cdg cds cdu ce- cea ceb cec ced cee cef ceg ces ceu cfa cfb cfc cfd cfe cff cfg cfs cfu cga cgb cgc cgd cge cgg cgs cgu csa csb csc csd cse csf csg css csu cua cub cuc cud cue cuf cug cus cuu daa dab dac dad dae daf dag das dau dba dbb dbc dbd dbe dbf dbg dbs dbu dca dcb dcc dcd dce dcf dcg dcs dcu dda ddb ddc ddd dde ddf ddg dds ddu de- dea deb dec ded dee def deg des deu dfa dfb dfc dfd dfe dff dfg dfs dfu dga dgc dgd dge dgf dgg dgs dgu dsa dsb dsc dsd dse dsf dsg dss dsu dua dub duc dud due duf dug dus eaa eab eac ead eae eaf eag eas eau eba ebb ebc ebd ebe ebf ebg ebs ebu ec- eca ecb ecc ecd ece ecf ecg ecs ecu ed- eda edb edc edd ede edf edg eds edu eea eeb eec eed eee eef eeg ees ef- efa efb efc efd efe eff efg efs ega egb egc egd ege egf egg egs egu es- esa esb esc esd ese esf esg ess esu eu- eua eub euc eud eue euf eug eus faa fab fac fad fae faf fag fas fau fba fbb fbc fbd fbe fbf fbg fbs fbu fca fcb fcc fcd fce fcf fcg fcs fcu fda fdb fdc fdd fde fdf fdg fds fdu fea feb fec fed fee fef feg fes feu ffa ffc ffd ffe fff ffg ffs ffu fga fgb fgc fgd fge fgf fgg fgs fsa fsb fsc fsd fse fsf fsg fss fsu fua fub fud fue fuf fug fus fuu g-d gaa gab gac gad gae gaf gag gas gau gba gbc gbd gbe gbf gbg gbs gbu gca gcb gcc gcd gce gcf gcg gcs gcu gda gdb gdc gdd gde gdf gds gdu ge- gea geb gec ged gee gef geg ges geu gfa gfb gfc gfd gfe gff gfs gga ggb ggc ggd ggg ggs ggu gsa gsb gsc gsd gse gsf gsg gss gsu gu- gua gub guc gud gue guf gug gus guu saa sab sac sad sae saf sag sas sau sba sbb sbc sbd sbe sbf sbg sbs sbu sca scb scc scd sce scf scg scs scu sda sdb sdc sdd sde sdf sdg sds sdu se- sea seb sec sed see sef seg ses seu sfa sfb sfc sfd sfe sff sfg sfs sfu sga sgb sgc sgd sge sgf sgg sgs sgu ss- ssa ssb ssc ssd sse ssf ssg sss ssu sua sub suc sud sue suf sug sus suu ua- uaa uab uac uad uae uaf uag uas uau uba ubb ubc ube ubf ubg ubs ubu uca ucb ucc ucd uce ucf ucg ucs ucu uda udb udc udd ude udf udg uds udu uea ueb uec ued uee uef ueg ues ufa ufc ufd ufe uff ufg ufs ufu uga ugb ugc uge ugf ugg ugs ugu usa usb usc usd use usf usg uss usu uua uuc uue uug uus uuu

-ase a-be a-fu aaaa aaab aaac aaad aaae aaaf aaas aaba aabb aabc aabd aaca aacb aacc aacd aace aacf aacs aacu aada aadc aade aads aadu aaea aaec aaes aafa aafb aafc aafd aaff aage aasa aasc aasd aase aasf aass aasu aaus abaa abab abac abad abae abaf abag abas abau abb- abba abbb abbe abbs abca abcb abcc abcd abcf abcs abda abdu abec abed abee abes abff abgd abs- absa absd abse absf abss absu abua abud abue abuf abug abus acaa acab acac acad acae acag acas acba acca accc accd acce accf accs accu acda acdb acdc acde acdf acds ace- acea acec aced aces acfc acfd acfe acfs acga acgs acsa acsc acsd acse acss acu- acue acuf acus adaa adab adac adad adae adag adas adba adbc adcc adcs adda addc addd adde adds addu adea adeb adee ades adfa adfc adfs adgs adsa adss adua adub adue aeac aeaf aeas aebs aecb aede aega aesc aesd aess afaa afad afbs afca afcb afcc afcs afcu afdb afdc afee afes affa affc affs afgf afsa afsb afsc afua afud afue afus agac agad agag agas agau agba agca agcc agce agda agde agea aged agee ages agfa agga agge aggu agsa agsg agsu agua ague agus asaa asab asac asad asae asaf asag asas asau asba asbu asc- asca ascb ascc asce asda asde asdf asds asea asec asee ases asfa asgd asge assa assc assd asse asss assu asub asud asue asus auaa aube auca auce audc aude aufc aufe aufs auga auge augs ausa ausd ause ausu auug