a-a a-b a-t aaa aab aaf aag aao aas aat ab- aba abb abf abg abo abs abt af- afa afb aff afg afo afs aft ag- aga agb agf agg ago ags agt aoa aob aof aog aoo aos aot as- asa asb asf asg aso ass ast at- ata atb atf atg ato ats att baa bab baf bag bao bas bat bba bbb bbf bbg bbo bbs bbt bfa bfb bff bfg bfo bfs bft bga bgb bgf bgg bgo bgs bgt boa bob bof bog boo bos bot bsa bsb bsf bsg bso bss bst bta btb btf btg bto bts btt faa fab faf fag fao fas fat fba fbb fbf fbg fbo fbs fbt ffa fff ffg ffo ffs fft fga fgb fgf fgg fgs fgt foa fob fof fog foo fos fot fsa fsb fsf fsg fso fss fst fta ftb ftf ftg fto fts ftt gaa gab gaf gag gao gas gat gba gbf gbg gbo gbs gbt gfa gfb gff gfo gfs gft gga ggb ggg ggo ggs ggt goa gob gof gog goo gos got gsa gsb gsf gsg gso gss gst gta gtb gtf gtg gto gts gtt oaa oab oaf oag oao oas oat ob- oba obb obf obg obo obs obt of- ofa ofb off ofg ofo ofs oft oga ogf ogg ogo ogs ogt oo- ooa oob oof oog ooo oos oot os- osa osb osf osg oso oss ost ot- ota otb otf otg oto ots ott saa sab saf sag sao sas sat sba sbb sbf sbg sbo sbs sbt sfa sfb sff sfg sfo sfs sft sga sgb sgf sgg sgo sgs sgt soa sob sof sog soo sos sot ss- ssa ssb ssf ssg sso sss sst sta stb stf stg sto sts stt taa tab taf tag tao tas tat tba tbb tbf tbg tbo tbs tbt tfa tfb tff tfg tfo tfs tft tga tgb tgf tgg tgo tgs tgt to- toa tob tof tog too tos tot tsa tsb tsf tsg tso tss tst tta ttb ttf ttg tto tts ttt

aaaa aaab aaaf aaas aaba aabb aabt aafa aafb aaff aaoo aasa aasf aass aast aata aatf aatt abaa abab abaf abag abas abat abb- abba abbb abbo abbs abbt abff aboa abob abof aboo abos abot abs- absa absf abss abta abts afaa afao afat afbs affa affo affs afft afgf afoa afog afoo afsa afsb afst afta afts ag-o agag agao agas agat agba agbo agfa agga agob agog agoo agos agot agsa agsg agst agta agts aoba aoss aotf asaa asab asaf asag asao asas asat asba asbo asfa asgt asob asof asog asos asot assa asso asss asst asta astb asto asts at-t ataa atab atas atat atbs atfb atfs atgo atob atof atos atot atsb atst atta atto atts baaa baaf baas baat baba babb babo babs baff bafo baft baga bagg bago bags bagt baos basa basf baso bass bast bata batf bato bats batt bbas bbbb bbbs bbga bfas bffs bfgf bfta bfts bftt bggs bgst boab boag boas boat boba bobb bobo bobs bofa boff bofs boga bogg bogo bogs bogt boob boof boog boos boot bosa boso boss bost bota botb boto bots bott bsaa bsas bsat bsfa bsff bsfs bsgs bsos bsts btaa btaf btob btss bttb faaa faas faba fabo fabs fafa faff fafg fafo fagg fago fags fasa faso fass fast fata fatf fato fats fatt ffff ffsa ffss fftf fgts foaf foba fobs fobt fofo fogg fogo fogs foof foos foot fosa fosb foso foss fost fota foto fots fott fsas fsfo fsgs fssa fssf fsta ftos ftsa gaas gaba gabb gabo gabs gabt gafa gafb gaff gaft gaga gagg gago gags gaos gasa gasb gaso gass gast gata gato gats gatt gbag gbas gbbo gbbs gffa gfoa ggbt ggfg gggg ggss goaf goas goat goba gobo gobs goff goga gogo gogs goof goog goos goot goso goss gost gota goto gots gott gsab gsat gsos gtaa gtfo gtos gtta oafo oafs oass oast oats obas obba obbo obos obot obss obst obts ofas off- offa offo offs ofgo ofst ofta ogb ogba ogoa ogog ooaa ooba ooff oofs oooo ooos oosa oost ootb oots osaf osag osas osat osba osfa osoo osos ossa ossb osso osta osts otas otbs oto- otof otog otoo otos otsa otsg otso otta otto otts s-os saab saaf saag saas saat saba sabb sabo sabs safa safb saff safo saft saga sagg sago sags sagt saos sasa sasf saso sass sast sata satb satg sato sats satt sbaa sbas sbbs sbot sbsa sbst sfas sfba sfog sfos sfss sfts sgaa sggg sggs sgss sgta sgts soas soat soba sobo sobs sobt sofa sofo soft soga sogo sogs soof soog soos soot sosa soso soss sost sota soto sots ssaa ssab ssao ssas ssat ssgs ssgt ssot sssa sssb sssf ssss ssta sstb ssts stab stag stas stat stbs stoa stob stof stog stoo stos stot stsf stss taa- taaf taag taas taat taba tabb tabo tabs tafa taff tafo taft taga tagg tago tags taoa taos tasa tasb tass tast tata tatb tato tats tatt tbaf tbas tbbs tbgs tbst tbta tfot tfss tgfa tgts toab toas toat toba tobo tobs tobt tofa toff tofo toft toga togo togs togt tooa toof toos toot tosa tosb toso toss tost tota toto tots tott tsaa tsao tsat tsgt tsob tsos tssa tssf tssg tsst tsts ttab ttbb ttfa ttff ttss tttt

-aaa- aaaas aaasa aaass aaata aabaa aabba aabfs aabga aafat aagot abaab ababa ababs abaft abaga abago abasa abass abbas abbat abbos abbot abfab abffs aboab aboat abobo aboot aboso abott abtaa abtaf abtao afast afoot afoss aftab agafa agago agast agata agats aggag aggat aggot agoat agogo agoof agoos agost agtas aooga aoos aosta asaba asafa asafo asaga asasa asats asbos asfag asfat asgat asofa asoft asoga asoof asosa asota assab assaf assas assat assoa assos assot assts