a-a a-b a-c aaa aab aac aad aaj aak aao aas ab- aba abb abc abd abj abk abo abs ac- aca acb acc acd acj ack aco acs ad- ada adb adc add adj adk ado ads aja ajb ajc ajd ajj ajk ajo ajs aka akb akc akd akj akk ako aks aoa aob aoc aod aoj aok aoo aos as- asa asb asc asd asj ask aso ass baa bab bac bad baj bak bao bas bba bbb bbc bbd bbk bbo bbs bca bcb bcc bcd bcj bck bco bcs bda bdb bdc bdd bdj bdk bdo bds bja bjc bjd bjj bjk bjs bka bkb bkc bkk bko bks boa bob boc bod boj bok boo bos bsa bsb bsc bsd bsj bsk bso bss c-- c-j caa cab cac cad caj cak cao cas cba cbb cbc cbd cbj cbk cbo cbs cca ccb ccc ccd ccj cck cco ccs cda cdb cdc cdd cdj cdk cdo cds cja cjb cjc cjd cjk cjs cka ckb ckc ckd cko cks co- coa cob coc cod coj cok coo cos csa csb csc csd csj csk cso css daa dab dac dad daj dak dao das dba dbb dbc dbd dbk dbo dbs dca dcb dcc dcd dck dco dcs dda ddb ddc ddd ddk ddo dds dj- dja djb djc djd djk djo djs dka dkb dkc dkk dko dks doa dob doc dod doj dok doo dos dsa dsb dsc dsd dsj dsk dso dss j-d jaa jab jac jad jaj jak jao jas jba jbc jbj jbk jbo jbs jca jcb jcc jcd jck jco jcs jda jdb jdc jdo jds jja jjb jjc jjj jjk jjs jka jkb jkk jko jks joa job joc jod joj jok joo jos jsa jsb jsc jsd jsj jsk jso jss ka- kaa kab kac kad kaj kak kao kas kba kbb kbc kbd kbk kbo kbs kca kcb kcc kcd kck kcs kda kdb kdc kdk kdo kds kjb kjc kjs kkb kkc kkk kks koa kob koc kod kok koo kos ksa ksb ksc ksd ksk kso kss oaa oab oac oad oaj oak oao oas ob- oba obb obc obd obj obk obo obs oc- oca ocb occ ocd ocj ock oco ocs oda odb odc odd odo ods oja ojb ojc ojd ojo ojs oka okb okc okd okj okk oko oks oo- ooa oob ooc ood ook ooo oos os- osa osb osc osd osj osk oso oss saa sab sac sad saj sak sao sas sba sbb sbc sbd sbj sbk sbo sbs sca scb scc scd scj sck sco scs sda sdb sdc sdd sdj sdk sdo sds sja sjb sjc sjd sjj sjk sjs sk- ska skb skc skd skj skk sko sks soa sob soc sod soj sok soo sos ss- ssa ssb ssc ssd ssj ssk sso sss

a-ak a-do a-ok aaaa aaab aaac aaad aaas aaba aabb aabc aabd aaca aacb aacc aacd aack aaco aacs aada aadc aads aaka aaoo aasa aasc aasd aass abaa abab abac abad abaj abak abas abb- abba abbb abbo abbs abca abcb abcc abcd abcs abda abdo abjs aboa abob abod abok aboo abos abs- absa absd abss acaa acab acac acad acas acba acca accc accd acco accs acda acdb acdc acds ackd acks acoa acod acos acsa acsc acsd acss adaa adab adac adad adak adao adas adba adbc adcc adcs adda addc addd addo adds adja adjs adob adoc adod adok adoo ados adsa adso adss ajab ajac ajak ajao ajas ajba ajka ajob ajoo ajss akaa akao akas akca akka akko akok akos aksa aoba aoca aocs aoks aosd aoss asaa asab asac asad asak asao asas asba asbo asc- asca ascb ascc ascj asco asda asdo asds asja aska asko asks asob asoc asod asok asos assa assc assd assk asso asss baaa baad baak baas baba babb babo babs bac- baca bacc back baco bacs bada badb badd bado bads baja bajs bak- baka bako baks baos basa basc bask baso bass bbad bbas bbbb bbbs bbdd bbdo bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bcos bcsa bcsc bcss bd-j bdbc bddc bdos bdsd bjcc bjoa boab boac boad boak boas boba bobb bobo bobs boca bock boco bocs boda bodb bodo bods bojd bojo boka boko boks boob booc bood book boos bosa bosc bosk boso boss bsaa bsac bsas bsbd bscs bsod bsos bssc bssd c-bo c-cd caaa caab caac caas caba cabo cabs cac- caca cacc cack caco cada cadc cadd cado cads caja caka caod caos casa casb casc casd cask caso cass cbac cbbc cbbs cbca cbcc cbcs cbdb cbdc cbdo cbds cbka cbkj cbko cbsa cbsc ccaa ccab ccac ccad ccas ccba ccbc ccca cccb cccc cccs ccdc ccds ccjo ccob ccoc ccod ccsa ccsd ccss cdaa cdac cdad cdba cdcs cdda cddb cdos cdss cjad cjbc cjbk cjca cjcb cjcj cjcs cjdc cjob cjsb cjss ckac ckbc ckck ckco ckcs ckdo ckjs ckoa ckob ckoc ckoo ckos cksa cksb ckso coad coak coas coba cobb cobo cobs coca cock coco coda codd cods cojo cok- coka coko coob cood cook coos cosa cosc coso coss csaa csab csac csak csao csas cscb cscc cscd csco cscs csda csdb cska csks csob csos cssa cssd d-bo daab daad daas daba dabb dabo dabs daca dacs dada dado dads daja dajc daka dako daks daos dasa dasb dasc dasd dask dass dbas dbcc dbcs dbos dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcos dcsc dcss dddd ddoc ddss djao dkba dkdc doab doak doas doba dobb dobs doca dock doco docs dod- doda dodd dodo dods doja dojo doka doko doob dood dook doos dosa dosk doso doss dsac dsba dsbc dscc dscs dsda dsoa dsos dssa dssc jaak jaas jaba jabo jabs jaca jacc jack jaco jacs jada jado jaja jaka jako jasa jasc jasd jask jaso jass jbaa jbob