-al -ol a-a a-b a-c aaa aab aac aak aal aao aas aax ab- aba abb abc abk abl abo abs abx ac- aca acb acc ack acl aco acs acx aka akb akc akk akl ako aks al- ala alb alc alk all alo als alx aoa aob aoc aok aol aoo aos aox as- asa asb asc ask asl aso ass asx ax- axa axk axl axo axs axx baa bab bac bak bal bao bas bax bba bbb bbc bbk bbl bbo bbs bbx bca bcb bcc bck bcl bco bcs bcx bka bkb bkc bkk bkl bko bks bkx bla blb blc blk bll blo bls blx boa bob boc bok bol boo bos box bsa bsb bsc bsk bsl bso bss bsx bxb bxl bxo bxx c-- caa cab cac cak cal cao cas cax cba cbb cbc cbk cbl cbo cbs cbx cca ccb ccc cck ccl cco ccs ccx cka ckb ckc cko cks ckx cl- cla clb clc clk cll clo cls clx co- coa cob coc cok col coo cos cox csa csb csc csk csl cso css csx cxc cxk cxl cxo cxs cxx ka- kaa kab kac kak kal kao kas kax kba kbb kbc kbk kbl kbo kbs kbx kca kcb kcc kck kcl kcs kcx kkb kkc kkk kkl kks kl- kla klb klc klo kls klx koa kob koc kok kol koo kos ksa ksb ksc ksk ksl kso kss kxl kxo la- laa lab lac lak lal lao las lax lba lbb lbc lbk lbl lbo lbs lbx lca lcb lcc lck lcl lco lcs lcx lka lkb lkl lks lla llb llc llk lll llo lls loa lob loc lok lol loo los lox lsa lsb lsc lsk lsl lso lss lxc lxo lxx oaa oab oac oak oal oao oas oax ob- oba obb obc obk obl obo obs obx oc- oca ocb occ ock ocl oco ocs ocx oka okb okc okk okl oko oks ola olb olc olk oll olo ols oo- ooa oob ooc ook ool ooo oos oox os- osa osb osc osk osl oso oss osx ox- oxa oxb oxc oxo oxx saa sab sac sak sal sao sas sax sba sbb sbc sbk sbl sbo sbs sbx sca scb scc sck scl sco scs scx sk- ska skb skc skk skl sko sks skx sla slb slc slk sll slo sls slx soa sob soc sok sol soo sos sox ss- ssa ssb ssc ssk ssl sso sss ssx sxc sxl sxs xaa xac xak xal xas xbc xbl xbx xcb xcl xcx xkb xkl xks xla xlb xls xoa xoc xok xoo xos xox xsa xsb xsc xsl xss xxl xxo xxx

a-ak a-ok aaaa aaab aaac aaal aaas aaba aabb aabc aabl aaca aacb aacc aack aacl aaco aacs aaka aala aalc aall aalo aals aaoo aasa aasc aass abaa abab abac abak abal abas abax abb- abba abbb abbo abbs abca abcb abcc abcl abcs abla ablo abls aboa abob abok abol aboo abos abox abs- absa absl abss acaa acab acac acas acba acbl acca accc acco accs acks acla aclc acls acoa acol acos acsa acsc acsl acss akaa akal akao akas akca akka akko aklo akok akos aksa alaa alac alak alal alao alas alb- alba albc albo albs alca alcc alco alcs alk- alka alkb alko all- alla alll allo alls aloa aloc alok alol aloo alos alsa alsc also alxa aoba aoca aocs aoks aola aoss asaa asab asac asak asal asao asas asba asbo asc- asca ascb ascc ascl asco ascx aska asko asks asla aslo asob asoc asok asos assa assc assk assl asso asss axal axo- axoa axos axxo ba-x baaa baak baal baas baba babb babo babs bac- baca bacc back baco bacs bak- baka bakl bako baks bala balc balk ball balo bals baol baos basa basc bask baso bass bbas bbbb bbbs bblb bbls bbox bcaa bcas bcbc bcbs bcca bccc bccl bccs bcos bcsa bcsc bcsl bcss blaa blab blac blak blas blkb blls blob bloc blok bloo blss boab boac boak boal boas boba bobb bobo bobs boca bock boco bocs boka boko boks bola bolk boll bolo bols boob booc book bool boos boox bosa bosc bosk boso boss boxa bsaa bsac bsas bscs bslc bsos bssc c-bo caaa caab caac caal caas caba cabo cabs cac- caca cacc cack caco caka cala calc calk call calo cals calx caol caos casa casb casc cask casl caso cass caxa cbac cbal cbax cbbc cbbs cbca cbcc cbcl cbcs cbka cbkl cbko cblb cblc cbol cbox cbsa cbsc cbxa ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs ccla cclc ccls cclx ccob ccoc ccsa ccsl ccss ccxl ckac ckbc ckbx ckck ckcl ckco ckcs ckcx ckoa ckob ckoc ckoo ckos cksa cksb cksl ckso clab clas clob clok cloo clos clox clsa clsc clxx coak coal coas coax coba cobb cobo cobs coca cock coco cok- coka coko col- cola colb colk coll colo cols coob cook cool coos cosa cosc cosl coso coss coxa csaa csab csac csak csao csas cscb cscc cscl csco cscs cska csks csla csob csos csox cssa cxxx k-lo k-os kaaa kaab kaak kaal kaas kaba kabb kabc kabo kacb kacc kacl kaco kacs kaka kakc kakk kako kaks kakx kala kalb kalc kalk kall kalo kals kalx kaoa kaoc kaok kaol kaos kaox kas- kasa kasb kasc kask kasl kaso kass kasx kaxa kaxl kbaa kbab kbac kbak kbal kbas kbba kbbb kbbc kbbk kbbl kbbo kbbs kbca kbcb kbck kbcl kbco kbcs kbkb kbkk kbkl kbko kbla kblb kbll kblo kbls kboa kbob kboc kbok kboo kbos kbox kbsa kbsb kbsk kbso kbss kbsx kbxb kbxl kbxs kbxx kc-x kcaa kcab kcac kcal kcas kcba kcbc kcbk kcbl kcbs kcbx kcca kccb kccc kcck kccl kckc kckk kckl kcko kckx kcla kclc kclk kcll kcls kclx kcob kcol kcos kcox