-al -ol a-a a-b a-c a-t aaa aab aac aad aal aao aas aat ab- aba abb abc abd abl abo abs abt ac- aca acb acc acd acl aco acs act ad- ada adb adc add adl ado ads adt al- ala alb alc ald all alo als alt aoa aob aoc aod aol aoo aos aot as- asa asb asc asd asl aso ass ast at- ata atb atc atd atl ato ats att baa bab bac bad bal bao bas bat bba bbb bbc bbd bbl bbo bbs bbt bca bcb bcc bcd bcl bco bcs bct bda bdb bdc bdd bdl bdo bds bdt bla blb blc bld bll blo bls blt boa bob boc bod bol boo bos bot bsa bsb bsc bsd bsl bso bss bst bta btb btc btd btl bto bts btt c-- caa cab cac cad cal cao cas cat cba cbb cbc cbd cbl cbo cbs cbt cca ccb ccc ccd ccl cco ccs cct cda cdb cdc cdd cdl cdo cds cdt cl- cla clb clc cld cll clo cls clt co- coa cob coc cod col coo cos cot csa csb csc csd csl cso css cst cta ctb ctc ctd ctl cto cts ctt daa dab dac dad dal dao das dat dba dbb dbc dbd dbl dbo dbs dbt dca dcb dcc dcd dcl dco dcs dct dda ddb ddc ddd ddl ddo dds ddt dl- dla dlb dlc dld dll dlo dls dlt doa dob doc dod dol doo dos dot dsa dsb dsc dsd dsl dso dss dst dta dtb dtc dtd dtl dto dts dtt la- laa lab lac lad lal lao las lat lba lbb lbc lbd lbl lbo lbs lbt lca lcb lcc lcd lcl lco lcs lct lda ldb ldc ldd ldl ldo lds ldt lla llb llc lld lll llo lls llt loa lob loc lod lol loo los lot lsa lsb lsc lsd lsl lso lss lst lta ltb ltc ltd ltl lto lts ltt oaa oab oac oad oal oao oas oat ob- oba obb obc obd obl obo obs obt oc- oca ocb occ ocd ocl oco ocs oct oda odb odc odd odl odo ods odt ola olb olc old oll olo ols olt oo- ooa oob ooc ood ool ooo oos oot os- osa osb osc osd osl oso oss ost ot- ota otb otc otd otl oto ots ott saa sab sac sad sal sao sas sat sba sbb sbc sbd sbl sbo sbs sbt sca scb scc scd scl sco scs sct sda sdb sdc sdd sdl sdo sds sdt sla slb slc sld sll slo sls slt soa sob soc sod sol soo sos sot ss- ssa ssb ssc ssd ssl sso sss sst sta stb stc std stl sto sts stt taa tab tac tad tal tao tas tat tba tbb tbc tbd tbl tbo tbs tbt tca tcb tcc tcd tcl tco tcs tct tda tdb tdc tdd tdl tdo tds tdt tla tlc tld tll tlo tls tlt to- toa tob toc tod tol too tos tot tsa tsb tsc tsd tsl tso tss tst tta ttb ttc ttd ttl tto tts ttt

a-do aaaa aaab aaac aaad aaal aaas aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aacl aaco aacs aact aada aadc aads aadt aala aalc aald aall aalo aals aaoo aasa aasc aasd aass aast aata aatc aatt abaa abab abac abad abal abas abat abb- abba abbb abbo abbs abbt abca abcb abcc abcd abcl abcs abct abda abdo abla ablo abls aboa abob abod abol aboo abos abot abs- absa absd absl abss abta abts ac-t acaa acab acac acad acas acat acba acbl acca accc accd acco accs acct acda acdb acdc acds acdt acla aclc acls acoa acod acol acos acot acsa acsc acsd acsl acss acst acta actc actl acto acts actt adaa adab adac adad adal adao adas adat adba adbc adcc adcs adda addc addd addl addo adds adls adob adoc adod adoo ados adot adsa adsl adso adss adst adta adts alaa alac alad alal alao alas alat alb- alba albc albo albs alca alcc alco alcs ald- alda aldl aldo alds all- alla alll allo alls aloa aloc alod alol aloo alos alot alsa alsc also alst alta alto alts aoba aoca aocs aola aosd aoss aotc aotd asaa asab asac asad asal asao asas asat asba asbo asc- asca ascb ascc ascl asco asct asda asdl asdo asds asla aslo asob asoc asod asos asot assa assc assd assl asso asss asst asta astb astc astl asto asts at-l at-t ataa atab atac atad atal atas atat atbs atca atcc atcl atco atcs atdt atla atlo atls atob atoc atod atol atos atot atsb atsc atst atta atto atts baaa baad baal baas baat baba babb babo babs bac- baca bacc baco bacs bact bada badb badd bado bads bala balc bald ball balo bals balt baol baos basa basc baso bass bast bata batc bato bats batt bbad bbas bbbb bbbs bbdd bbdo bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bccl bccs bcda bcds bcos bcsa bcsc bcsl bcss bctc bcts bdbc bddc bdls bdos bdsd blaa blab blac blad blas blat blbt bldc blls blob bloc blod bloo blot blss blst blts boab boac boad boal boas boat boba bobb bobo bobs boca boco bocs boda bodb bodo bods bola bold boll bolo bols bolt boob booc bood bool boos boot bosa bosc boso boss bost bota botb botd boto bots bott bsaa bsac bsas bsat bsbd bscs bsdl bslc bsod bsos bssc bssd bsts btaa btcc btcl btcs btdt btla btob btss bttb c-bo c-cd caaa caab caac caal caas caat caba cabo cabs cac- caca cacc caco cada cadc cadd cado cads cala calc cald call calo cals calt caod caol caos casa casb casc casd casl caso cass cast cat- cata catb catc catd cato cats