a-a a-b a-t aaa aab aad aae aaf aag aak aat ab- aba abb abd abe abf abg abk abt ad- ada adb add ade adf adg adk adt aea aeb aed aee aef aeg aek aet af- afa afb afd afe aff afg afk aft ag- aga agb agd age agf agg agk agt aka akb akd ake akg akk at- ata atb atd ate atf atg att baa bab bad bae baf bag bak bat bba bbb bbd bbe bbf bbg bbk bbt bda bdb bdd bde bdf bdg bdk bdt be- bea beb bed bee bef beg bek bet bfa bfb bfd bfe bff bfg bft bga bgb bgd bge bgf bgg bgk bgt bka bkb bke bkf bkg bkk bkt bta btb btd bte btf btg btk btt daa dab dad dae daf dag dak dat dba dbb dbd dbe dbf dbg dbk dbt dda ddb ddd dde ddf ddg ddk ddt de- dea deb ded dee def deg dek det dfa dfb dfd dfe dff dfg dfk dft dga dgd dge dgf dgg dgk dgt dka dkb dke dkg dkk dkt dta dtb dtd dte dtf dtg dtk dtt eaa eab ead eae eaf eag eak eat eba ebb ebd ebe ebf ebg ebk ebt ed- eda edb edd ede edf edg edk edt eea eeb eed eee eef eeg eek eet ef- efa efb efd efe eff efg eft ega egb egd ege egf egg egt eka ekb ekd eke ekf ekg ekt eta etb etd ete etf etg etk ett faa fab fad fae faf fag fak fat fba fbb fbd fbe fbf fbg fbk fbt fda fdb fdd fde fdf fdg fdk fdt fea feb fed fee fef feg fek fet ffa ffd ffe fff ffg ffk fft fga fgb fgd fge fgf fgg fgt fka fkb fkf fkg fkk fkt fta ftb ftd fte ftf ftg ftk ftt g-d gaa gab gad gae gaf gag gak gat gba gbd gbe gbf gbg gbk gbt gda gdb gdd gde gdf gdk gdt ge- gea geb ged gee gef geg gek get gfa gfb gfd gfe gff gfk gft gga ggb ggd ggg ggt gka gkb gkd gkt gta gtb gtd gte gtf gtg gtk gtt k-t ka- kaa kab kad kae kaf kag kak kat kba kbb kbd kbe kbf kbk kda kdb kde kdf kdg kdk kdt ke- kea keb ked kee kef keg kek ket kfa kfd kff kfg kga kgb kgd kgf kkb kke kkk kkt kta ktb kte ktf ktg ktk ktt taa tab tad tae taf tag tak tat tba tbb tbd tbe tbf tbg tbk tbt tda tdb tdd tde tdf tdg tdk tdt te- tea teb ted tee tef teg tek tet tfa tfb tfd tfe tff tfg tfk tft tga tgb tge tgf tgg tgk tgt tka tkb tke tkg tkk tkt tta ttb ttd tte ttf ttg ttk ttt

a-ak a-be aaaa aaab aaad aaae aaaf aaba aabb aabd aabt aada aade aadt aaea aafa aafb aafd aaff aage aaka aake aata aatf aatk aatt abaa abab abad abae abaf abag abak abat abb- abba abbb abbe abbt abda abed abee abet abff abgd abta adaa adab adad adae adag adak adat adba adda addd adde adea adeb adee adet adfa adta aeaf aede aedt aega aeka aeta aetf aett afaa afad afak afat afdb afee afek afet affa afft afgf afka afta afte agad agag agat agba agda agde agea aged agee aget agfa agga agge agta agte akaa akae aked akee akeg akka akte at-t ataa atab atad atae atak atat atdt atea ated atee atef atfb atfe atka atkt atta atte baaa baad baaf baak baat baba babb babe bada badb badd bade baed baek baff baft baga bage bagg bagt bak- baka bake bakt bata bate batf batt bbad bbbb bbdd bbeb bbet bbga bead beaf beag beak beat beba bebb bebe beda bede beeb beed beef beeg beek beet befa befe beff beft bega begg beka beke beta bete bett bfgf bfta bftt bkgd btaa btaf btdt btek bttb daab daad daae daag daba dabb dabt dada dade daeb dafa dafe daff daft daga dage dagg daka dake data date datt dbag dbtt dddd dead deae deaf deak deba debe debt deda dedd dede deeb deed deef deeg deek deet defe deff defg deft dega dege dek- deka deke deta dete detk dfaf dfdt dffa dftg dgeg dgge dgka dgkb dgkd dgkg dkba dtaa dted dtek eaaf eaba eada eadb eadd eafb eaga eage eata eate ebba ebed edad edag edda edde ede- edea edfa edge edta eede eeea eeee eefa eefe eega eeka eeke eeta eete ef-g efab efda efet effa efke eft- efta egaa egad egae egat egba egbe egea egee eggb egge egta egte egtk eka- ekab ekeb eked ekek eket ekka ekta etag etak etat etee etfa etfb etfe etka etta ette f--k faaa faad faba fabd fabe fada fadd fade faeb fafa fafe faff fafg fage fagg fake fakt fata fate fatf fatt fead feaf feak feat feba feda fede feeb feed feek feet fefe feff fege fegg feke feta fete fett ffee ffff fftf fkab ftea ftgd gaba gabb gabe gabt gada gadd gade gadk gaea gaed gafa gafb gaff gaft gaga gage gagg gata gate gatt gbag gbde gddb geab gead geat geba gebe geda gedd gede geed geek geet gefe geft gege gegg geta getb gete getg getk gett gffa ggbt ggfg gggg gtaa gtea gtta kaaa kaab kaaf kaag kaak kaat kaba kabb kabd kabe kabf kabg kad- kada kadd kade kadf kadt kaet kafa kafe kaff kag- kaga kagb kage kagg kagt kaka kake kakk kakt kat- kata katb katd kate katf katg katk katt kbaa kbab kbad kbae kbak kbat kbba kbbb kbbd kbbe kbbf kbbg kbbk kbbt kbdb kbde kbdf kbdg kbeb kbed kbee kbef kbek kbet kbfb kbff kbfk kbft kbga kbgb kbge kbgg kbgt kbkb kbkf kbkg kbkk kbta kbtb kbte kbtf kbtk kbtt