-al -ol a-a a-b a-c a-t aaa aab aac aal aao aas aat ab- aba abb abc abl abo abs abt ac- aca acb acc acl aco acs act al- ala alb alc all alo als alt aoa aob aoc aol aoo aos aot as- asa asb asc asl aso ass ast at- ata atb atc atl ato ats att baa bab bac bal bao bas bat bba bbb bbc bbl bbo bbs bbt bca bcb bcc bcl bco bcs bct bla blb blc bll blo bls blt boa bob boc bol boo bos bot bsa bsb bsc bsl bso bss bst bta btb btc btl bto bts btt c-- caa cab cac cal cao cas cat cba cbb cbc cbl cbo cbs cbt cca ccb ccc ccl cco ccs cct cl- cla clb clc cll clo cls clt co- coa cob coc col coo cos cot csa csb csc csl cso css cst cta ctb ctc ctl cto cts ctt la- laa lab lac lal lao las lat lba lbb lbc lbl lbo lbs lbt lca lcb lcc lcl lco lcs lct lla llb llc lll llo lls llt loa lob loc lol loo los lot lsa lsb lsc lsl lso lss lst lta ltb ltc ltl lto lts ltt oaa oab oac oal oao oas oat ob- oba obb obc obl obo obs obt oc- oca ocb occ ocl oco ocs oct ola olb olc oll olo ols olt oo- ooa oob ooc ool ooo oos oot os- osa osb osc osl oso oss ost ot- ota otb otc otl oto ots ott saa sab sac sal sao sas sat sba sbb sbc sbl sbo sbs sbt sca scb scc scl sco scs sct sla slb slc sll slo sls slt soa sob soc sol soo sos sot ss- ssa ssb ssc ssl sso sss sst sta stb stc stl sto sts stt taa tab tac tal tao tas tat tba tbb tbc tbl tbo tbs tbt tca tcb tcc tcl tco tcs tct tla tlc tll tlo tls tlt to- toa tob toc tol too tos tot tsa tsb tsc tsl tso tss tst tta ttb ttc ttl tto tts ttt

aaaa aaab aaac aaal aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aaco aacs aact aala aalc aall aalo aals aaoo aasa aasc aass aast aata aatc aatt abaa abab abac abal abas abat abb- abba abbb abbo abbs abbt abca abcb abcc abcl abcs abct abla ablo abls aboa abob abol aboo abos abot abs- absa absl abss abta abts ac-t acaa acab acac acas acat acba acbl acca accc acco accs acct acla aclc acls acoa acol acos acot acsa acsc acsl acss acst acta actc actl acto acts actt alaa alac alal alao alas alat alb- alba albc albo albs alca alcc alco alcs all- alla alll allo alls aloa aloc alol aloo alos alot alsa alsc also alst alta alto alts aoba aoca aocs aola aoss aotc asaa asab asac asal asao asas asat asba asbo asc- asca ascb ascc ascl asco asct asla aslo asob asoc asos asot assa assc assl asso asss asst asta astb astc astl asto asts at-l at-t ataa atab atac atal atas atat atbs atca atcc atcl atco atcs atla atlo atls atob atoc atol atos atot atsb atsc atst atta atto atts baaa baal baas baat baba babb babo babs bac- baca bacc baco bacs bact bala balc ball balo bals balt baol baos basa basc baso bass bast bata batc bato bats batt bbas bbbb bbbs bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bccl bccs bcos bcsa bcsc bcsl bcss bctc bcts blaa blab blac blas blat blbt blls blob bloc bloo blot blss blst blts boab boac boal boas boat boba bobb bobo bobs boca boco bocs bola boll bolo bols bolt boob booc bool boos boot bosa bosc boso boss bost bota botb boto bots bott bsaa bsac bsas bsat bscs bslc bsos bssc bsts btaa btcc btcl btcs btla btob btss bttb c-bo caaa caab caac caal caas caat caba cabo cabs cac- caca cacc caco cala calc call calo cals calt caol caos casa casb casc casl caso cass cast cat- cata catb catc cato cats catt cbac cbal cbat cbbc cbbs cbca cbcc cbcl cbcs cbct cblb cblc cbol cbot cbsa cbsc cbta cbtc cbtl ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccl cccs ccla cclc ccls ccob ccoc ccsa ccsl ccss ccst cctb cctc cctl cctt clab clas clat clob cloo clos clot clsa clsc cltb cltc clts coal coas coat coba cobb cobo cobs coca coco coct col- cola colb coll colo cols colt coob cool coos coot cosa cosc cosl coso coss cost cota cotb cotc coto cots cott csaa csab csac csao csas csat cscb cscc cscl csco cscs csla csob csos csot cssa csta cstc csto csts ctab ctal ctba ctbs ctca ctls ctol ctos ctot ctsa ctsc ctss ctta ctts laaa laac laal laas laat laba labo labs laca lacc lacl laco lacs lact lala lall lalo laos lasa laso lass last lata latc lato lats latt lbcc lbos lbsc lcac lcat lcbc lcca lccc lccs lcls lcsc lctl lcto lcts llao llat llbs llcc llcs lllc llll lloa lloc lloo loac loas loat lob- loba lobb lobo lobs loca locc loco locs lola loll lolo lols loob looc lool loos loot losa losc loso loss lost lota lotl loto lots lott lsat lscb lsco lscs lsla lssa lsso lsts ltac ltbl ltcc ltcs ltsa lttc oall oasc oasl oass oast oats obal obas obba obbo obla obls obol obos obot obss obst obts ocab ocac ocal ocas ocat ocbc occa occc occt oclc ocos ocsa oct- octa octo octs olac olas olat olba olbo olca olcc olla ollo olos olot olst olta ooaa ooba oola oolo oooo ooos oosa oost ootb oots osas osat osba osca oscc oscl osco osla oslo osoo osos ossa ossb