-al -ol a-a a-b a-c aaa aab aac aaf aal aao aas aau ab- aba abb abc abf abl abo abs abu ac- aca acb acc acf acl aco acs acu af- afa afb afc aff afl afo afs afu al- ala alb alc alf all alo als alu aoa aob aoc aof aol aoo aos aou as- asa asb asc asf asl aso ass asu au- aua aub auc auf aul auo aus b-u baa bab bac baf bal bao bas bau bba bbb bbc bbf bbl bbo bbs bbu bca bcb bcc bcf bcl bco bcs bcu bfa bfb bfc bff bfl bfo bfs bfu bla blb blc blf bll blo bls blu boa bob boc bof bol boo bos bou bsa bsb bsc bsf bsl bso bss bsu bua bub buc buf bul buo bus buu c-- caa cab cac caf cal cao cas cau cba cbb cbc cbf cbl cbo cbs cbu cca ccb ccc ccf ccl cco ccs ccu cfa cfb cfc cff cfl cfo cfs cfu cl- cla clb clc clf cll clo cls clu co- coa cob coc cof col coo cos cou csa csb csc csf csl cso css csu cua cub cuc cuf cul cuo cus cuu faa fab fac faf fal fao fas fau fba fbb fbc fbf fbl fbo fbs fbu fca fcb fcc fcf fcl fco fcs fcu ffa ffc fff ffl ffo ffs ffu fla flb flc flf fll flo fls flu foa fob foc fof fol foo fos fou fsa fsb fsc fsf fsl fso fss fsu fua fub fuf ful fuo fus fuu la- laa lab lac laf lal lao las lau lba lbb lbc lbf lbl lbo lbs lbu lca lcb lcc lcf lcl lco lcs lcu lfa lfb lfc lff lfl lfo lfs lfu lla llb llc llf lll llo lls llu loa lob loc lof lol loo los lou lsa lsb lsc lsf lsl lso lss lsu lua lub luc luf lul luo lus luu oaa oab oac oaf oal oao oas oau ob- oba obb obc obf obl obo obs obu oc- oca ocb occ ocf ocl oco ocs ocu of- ofa ofb ofc off ofl ofo ofs ofu ola olb olc olf oll olo ols olu oo- ooa oob ooc oof ool ooo oos os- osa osb osc osf osl oso oss osu ou- oua ouc ouf oul ouo ous saa sab sac saf sal sao sas sau sba sbb sbc sbf sbl sbo sbs sbu sca scb scc scf scl sco scs scu sfa sfb sfc sff sfl sfo sfs sfu sla slb slc slf sll slo sls slu soa sob soc sof sol soo sos sou ss- ssa ssb ssc ssf ssl sso sss ssu sua sub suc suf sul suo sus suu ua- uaa uab uac uaf ual uao uas uau uba ubb ubc ubf ubl ubo ubs ubu uca ucb ucc ucf ucl uco ucs ucu ufa ufc uff ufl ufo ufs ufu ula ulb ulc ulf ull ulo uls ulu uoa uob uoc uol uoo uos usa usb usc usf usl uso uss usu uua uuc uus uuu

-ous a-fu aaaa aaab aaac aaaf aaal aaas aaba aabb aabc aabl aaca aacb aacc aacf aacl aaco aacs aacu aafa aafb aafc aaff aafl aala aalc aall aalo aals aalu aaoo aasa aasc aasf aass aasu aaus abaa abab abac abaf abal abas abau abb- abba abbb abbo abbs abca abcb abcc abcf abcl abcs abff abla ablo abls aboa abob abof abol aboo abos abou abs- absa absf absl abss absu abua abuf abul abus acaa acab acac acas acba acbl acca accc accf acco accs accu acfc acfl acfs acla aclc acls aclu acoa acol acos acou acsa acsc acsl acss acu- acuf acul acuo acus afaa afao afbs afca afcb afcc afcs afcu affa affc affo affs afla aflc afoa afol afoo afsa afsb afsc afua afus alaa alac alal alao alas alau alb- alba albc albo albs albu alca alcc alco alcs alfa alfs all- alla alll allo alls allu aloa aloc alof alol aloo alos alou alsa alsc also alua aluf alus aoba aoca aocs aola aoss aouf aoul aous asaa asab asac asaf asal asao asas asau asba asbo asbu asc- asca ascb ascc ascl asco asfa asla aslo asob asoc asof asos asou assa assc assl asso asss assu asub asus auaa auca aufc aufs aul- aula aulf aull aulo auls aulu auol ausa ausu baaa baaf baal baas baba babb babo babs babu bac- baca bacc baco bacs bafc baff bafo bala balc balf ball balo bals balu baol baos basa basc basf baso bass basu bau- bauf baul bbas bbau bbbb bbbs bbfc bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcfc bcof bcos bcsa bcsc bcsl bcss bcuc bfas bfca bfcs bffl bffs blaa blab blac blas blau blcu blfc blls blob bloc bloo blou blss blub bluf blus boab boac boal boas boba bobb bobo bobs bobu boca boco bocs bocu bofa boff bofs bofu bola boll bolo bols bolu boob booc boof bool boos bosa bosc boso boss bosu boua bouf boul bous bsaa bsac bsas bscs bsfa bsfc bsff bsfs bslc bsos bssc bual buba bubb bubo bubs bubu buca bucc buco bucs bucu bufc buff bufo bula bulb bull buls bulu buol busa busc buss busu buus c-bo caaa caab caac caaf caal caas caba cabf cabo cabs cabu cac- caca cacc caco cafa cafb cafc caff cafl cafs cafu cala calc calf call calo cals calu caol caos casa casb casc casl caso cass casu cauc cauf caul cauo caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbcu cbfb cbfc cblb cblc cbol cbsa cbsc cbus ccaa ccab ccac ccaf ccas ccba ccbc ccca cccb cccc cccf cccl cccs cccu ccfa ccfc ccff ccfl ccla cclc ccls ccob ccoc ccsa ccsf ccsl ccss ccuc ccus cfaa cfab cfac cfao cfbc cfbs cfca cfcb cfcf cfcl cfco cfcs cffb