a-a a-b a-c aaa aab aac aad aas aau ab- aba abb abc abd abs abu ac- aca acb acc acd acs acu ad- ada adb adc add ads adu as- asa asb asc asd ass asu au- aua aub auc aud aus b-u baa bab bac bad bas bau bba bbb bbc bbd bbs bbu bca bcb bcc bcd bcs bcu bda bdb bdc bdd bds bdu bsa bsb bsc bsd bss bsu bua bub buc bud bus buu c-- caa cab cac cad cas cau cba cbb cbc cbd cbs cbu cca ccb ccc ccd ccs ccu cda cdb cdc cdd cds cdu csa csb csc csd css csu cua cub cuc cud cus cuu daa dab dac dad das dau dba dbb dbc dbd dbs dbu dca dcb dcc dcd dcs dcu dda ddb ddc ddd dds ddu dsa dsb dsc dsd dss dsu dua dub duc dud dus saa sab sac sad sas sau sba sbb sbc sbd sbs sbu sca scb scc scd scs scu sda sdb sdc sdd sds sdu ss- ssa ssb ssc ssd sss ssu sua sub suc sud sus suu ua- uaa uab uac uad uas uau uba ubb ubc ubs ubu uca ucb ucc ucd ucs ucu uda udb udc udd uds udu usa usb usc usd uss usu uua uuc uus uuu

aaaa aaab aaac aaad aaas aaba aabb aabc aabd aaca aacb aacc aacd aacs aacu aada aadc aads aadu aasa aasc aasd aass aasu aaus abaa abab abac abad abas abau abb- abba abbb abbs abca abcb abcc abcd abcs abda abdu abs- absa absd abss absu abua abud abus acaa acab acac acad acas acba acca accc accd accs accu acda acdb acdc acds acsa acsc acsd acss acu- acus adaa adab adac adad adas adba adbc adcc adcs adda addc addd adds addu adsa adss adua adub asaa asab asac asad asas asau asba asbu asc- asca ascb ascc asda asds assa assc assd asss assu asub asud asus auaa auca audc ausa ausd ausu baaa baad baas baba babb babs babu bac- baca bacc bacs bada badb badd bads badu basa basc bass basu bau- baud bbad bbas bbau bbbb bbbs bbdd bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bcsa bcsc bcss bcuc bdbc bddc bdsd bsaa bsac bsas bsbd bscs bssc bssd buad buba bubb bubs bubu buca bucc bucs bucu buda budb budd buds budu busa busc buss busu buus c-cd caaa caab caac caas caba cabs cabu cac- caca cacc cada cadc cadd cads cadu casa casb casc casd cass casu cauc caus cbac cbbc cbbs cbca cbcc cbcs cbcu cbdb cbdc cbds cbsa cbsc cbus ccaa ccab ccac ccad ccas ccba ccbc ccca cccb cccc cccs cccu ccdc ccds ccsa ccsd ccss ccuc ccus cdaa cdac cdad cdba cdcs cdda cddb cdss csaa csab csac csas cscb cscc cscd cscs csda csdb cssa cssd csua csus cuau cub- cuba cubb cubs cuca cucc cuda cuds cusa cusb cusd cuss cusu daab daad daas daau daba dabb dabs dabu daca dacs dada dads dadu dasa dasb dasc dasd dass daub daud daus dbas dbcc dbcs dbsa dbss dbus dcas dcbc dcca dccb dccc dccs dccu dcdb dcds dcsc dcss dddd ddss ddub dsac dsba dsbc dscc dscs dsda dssa dssc duaa duab duad duas dub- duba dubb dubc dubs dubu duca ducs duda dudd duds dudu dusa sa-c saab saac saad saas saba sabb sabc sabs sabu saca sacc sacd sacs sacu sada sadb sadc sadd sads sadu sasa sasc sasd sass saua sauc saud saus sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbsa sbsd sbus scaa scab scac scad scas scba sccc sccs scda scdc scds scsa scsc scsd scsu scua scub scud sdau sdba sdcc sddc sdds sdsc sdss sdsu ssaa ssab ssac ssas ssau ssca sscc sscs ssdc ssdd sssa sssb sssc ssss suas sub- suba subb subd subs suc- succ sucs suda sudd suds sus- susa susd suss susu suus uabc uaca uasa uasd uaua ubac ubba ubud ucad ucas ucbc ucca ucdc ucdd ucsa ucsb ucsc ucsd ucsu ucua udaa udad udas udau udbc udca udds udsd us-a usaa usac usad usas usba usbc usbs usca uscc uscs usda usdc usds ussa ussb ussc usss ussu usua usus uuuu

-aaa- -abad aaaas aaadc aaasa aaass aabaa aabba aacbc aacsa aacsb aacss aacus aadac aadas abaab ababa ababs ababu abaca abacs abada abasa abass abbac abbad abbas abbud abcas abccc abcdb abuda acaca acacb acads acass acaua accad accas accub accus acdcs acsad acsdc acuba acusa adaba adada adads adasa addas addsa ads-b aduba asaba asabc asada asasa asbad asbca ascus asdas assab assac assad assas asubs asuda auass aubad aubas aucas audad aussa b-cas babas babau babbs babus bacab bacas bacca bacu badas basab basad basca bassa bassu bauds bbuss bdubs bsaba buada bubas bubba bucca bucsa bucsu budac budca budda budds buddu busaa busad busca bussa bussu busua busuu c-a-c c-bus ca-ca caaba cabas cabus cacas cacau cacu cacus cadac caduc casas casca casus cauac cauas cauca caud- cauda causa ccass ccccc cccsd csaba cuaad cuaba cubas cubub d-a-d d-bus daada daasa dabas dabba dabbs dabbu dabua dabus dacau dacca dacus dadas dadau dadda dasca dasds dassa dassu daubs dauda dausa dccab ddddd duads dubac dubas dubau dubba dubbs dubuc dubus dudas dudua duduc s-bus saaba saabs saada saasa saasu sabac sabas sabau sabca sabda sabsa sabus sac-d sacas sacc- sacca sacsa sadad sadas sadda sadus sasca sasda sassa sauba sauca sauda sauds scabs scada scads scaud sccbc scdsb scsaa scuba scuds scusa sscac sssss suada suasa subba subbu subss subud sucua sudas sudds susac susus suudu u-dub ubacs us-sc usaas usabc ussac usuba uuuuu

aaaaba ababda ababsa abacab abacas abacus abadas abassa abbasa abbass abdabs abdasa abscss abubus abusua acacus acadsb acasa adabas adadds adassa adbass addada ads-ac aduadu ascaad assacu assads aucuba ausbbs aussac baabaa baabda babacu bacaba bacau baccus badass badaud badbad badusa bassac bassus baucau bauduc bbbbbb buabad