-al -ol a-a a-b a-c aaa aab aac aal aao aas aau ab- aba abb abc abl abo abs abu ac- aca acb acc acl aco acs acu al- ala alb alc all alo als alu aoa aob aoc aol aoo aos aou as- asa asb asc asl aso ass asu au- aua aub auc aul auo aus b-u baa bab bac bal bao bas bau bba bbb bbc bbl bbo bbs bbu bca bcb bcc bcl bco bcs bcu bla blb blc bll blo bls blu boa bob boc bol boo bos bou bsa bsb bsc bsl bso bss bsu bua bub buc bul buo bus buu c-- caa cab cac cal cao cas cau cba cbb cbc cbl cbo cbs cbu cca ccb ccc ccl cco ccs ccu cl- cla clb clc cll clo cls clu co- coa cob coc col coo cos cou csa csb csc csl cso css csu cua cub cuc cul cuo cus cuu la- laa lab lac lal lao las lau lba lbb lbc lbl lbo lbs lbu lca lcb lcc lcl lco lcs lcu lla llb llc lll llo lls llu loa lob loc lol loo los lou lsa lsb lsc lsl lso lss lsu lua lub luc lul luo lus luu oaa oab oac oal oao oas oau ob- oba obb obc obl obo obs obu oc- oca ocb occ ocl oco ocs ocu ola olb olc oll olo ols olu oo- ooa oob ooc ool ooo oos os- osa osb osc osl oso oss osu ou- oua ouc oul ouo ous saa sab sac sal sao sas sau sba sbb sbc sbl sbo sbs sbu sca scb scc scl sco scs scu sla slb slc sll slo sls slu soa sob soc sol soo sos sou ss- ssa ssb ssc ssl sso sss ssu sua sub suc sul suo sus suu ua- uaa uab uac ual uao uas uau uba ubb ubc ubl ubo ubs ubu uca ucb ucc ucl uco ucs ucu ula ulb ulc ull ulo uls ulu uoa uob uoc uol uoo uos usa usb usc usl uso uss usu uua uuc uus uuu

-ous aaaa aaab aaac aaal aaas aaba aabb aabc aabl aaca aacb aacc aacl aaco aacs aacu aala aalc aall aalo aals aalu aaoo aasa aasc aass aasu aaus abaa abab abac abal abas abau abb- abba abbb abbo abbs abca abcb abcc abcl abcs abla ablo abls aboa abob abol aboo abos abou abs- absa absl abss absu abua abul abus acaa acab acac acas acba acbl acca accc acco accs accu acla aclc acls aclu acoa acol acos acou acsa acsc acsl acss acu- acul acuo acus alaa alac alal alao alas alau alb- alba albc albo albs albu alca alcc alco alcs all- alla alll allo alls allu aloa aloc alol aloo alos alou alsa alsc also alua alus aoba aoca aocs aola aoss aoul aous asaa asab asac asal asao asas asau asba asbo asbu asc- asca ascb ascc ascl asco asla aslo asob asoc asos asou assa assc assl asso asss assu asub asus auaa auca aul- aula aull aulo auls aulu auol ausa ausu baaa baal baas baba babb babo babs babu bac- baca bacc baco bacs bala balc ball balo bals balu baol baos basa basc baso bass basu bau- baul bbas bbau bbbb bbbs bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcos bcsa bcsc bcsl bcss bcuc blaa blab blac blas blau blcu blls blob bloc bloo blou blss blub blus boab boac boal boas boba bobb bobo bobs bobu boca boco bocs bocu bola boll bolo bols bolu boob booc bool boos bosa bosc boso boss bosu boua boul bous bsaa bsac bsas bscs bslc bsos bssc bual buba bubb bubo bubs bubu buca bucc buco bucs bucu bula bulb bull buls bulu buol busa busc buss busu buus c-bo caaa caab caac caal caas caba cabo cabs cabu cac- caca cacc caco cala calc call calo cals calu caol caos casa casb casc casl caso cass casu cauc caul cauo caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbcu cblb cblc cbol cbsa cbsc cbus ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs cccu ccla cclc ccls ccob ccoc ccsa ccsl ccss ccuc ccus clab clas clau clob cloo clos clou clsa clsc club coal coas coba cobb cobo cobs cobu coca coco cocu col- cola colb coll colo cols colu coob cool coos cosa cosc cosl coso coss coua coub coul cous csaa csab csac csao csas cscb cscc cscl csco cscs csla cslu csob csos cssa csua csus cuau cub- cuba cubb cubs cuca cucc cula culb culc cull culo culs cusa cusb cuso cuss cusu laaa laac laal laas laba labo labs labu laca lacc lacl laco lacs lacu lala lall lalo lalu laos laou lasa laso lass lasu laub laul laus lbcc lbos lbsc lcac lcbc lcca lccc lccs lcls lcsc llao llbs llcc llcs lllc llll lloa lloc lloo loac loas lob- loba lobb lobo lobs loca locc loco locs locu lola loll lolo lols loob looc lool loos losa losc loso loss loul lous louu lsbu lscb lsco lscs lsla lssa lsso luas luau luba lubs luca lucs lula lull lulu lusa luso luss luua oaau oall oasc oasl oass obal obas obba obbo obla obls oblu obol obos obss obus ocab ocac ocal ocas ocbc occa occc oclc ocos ocsa ocul olac olas olba olbo olca olcc olla ollo olos ooaa ooba oola oolo oooo ooos oosa oous osas osba osca oscc oscl osco osla oslo osoo osos ossa ossb osso ossu osul ouac oubs oucc oula ouls oulu ousa ouu- s-os sa-c saab saac saal saas saba sabb sabc sabo sabs sabu saca sacc saco sacs sacu sala salc sall salo sals salu saol saos saou sasa sasc sasl saso sass saua sauc saul saus sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbus scaa scab scac scal