-ol bbb bbc bbd bbe bbk bbl bbo bbs bbt bcb bcc bcd bce bck bcl bco bcs bct bdb bdc bdd bde bdk bdl bdo bds bdt be- beb bec bed bee bek bel beo bes bet bkb bkc bke bkk bkl bko bks bkt blb blc bld ble blk bll blo bls blt bob boc bod boe bok bol boo bos bot bsb bsc bsd bse bsk bsl bso bss bst btb btc btd bte btk btl bto bts btt c-- cbb cbc cbd cbe cbk cbl cbo cbs cbt ccb ccc ccd cce cck ccl cco ccs cct cdb cdc cdd cde cdk cdl cdo cds cdt ce- ceb cec ced cee cek cel ceo ces cet ckb ckc ckd cko cks ckt cl- clb clc cld cle clk cll clo cls clt co- cob coc cod coe cok col coo cos cot csb csc csd cse csk csl cso css cst ctb ctc ctd cte ctk ctl cto cts ctt dbb dbc dbd dbe dbk dbl dbo dbs dbt dcb dcc dcd dce dck dcl dco dcs dct ddb ddc ddd dde ddk ddl ddo dds ddt de- deb dec ded dee dek del deo des det dkb dkc dke dkk dkl dko dks dkt dl- dlb dlc dld dle dlk dll dlo dls dlt dob doc dod doe dok dol doo dos dot dsb dsc dsd dse dsk dsl dso dss dst dtb dtc dtd dte dtk dtl dto dts dtt ebb ebc ebd ebe ebk ebl ebo ebs ebt ec- ecb ecc ecd ece eck ecl eco ecs ect ed- edb edc edd ede edk edl edo eds edt eeb eec eed eee eek eel eeo ees eet ekb ekc ekd eke ekl eko eks ekt elb elc eld ele elk ell elo els elt eo- eob eoc eod eoe eok eol eoo eos eot es- esb esc esd ese esk esl eso ess est etb etc etd ete etk etl eto ets ett k-t kbb kbc kbd kbe kbk kbl kbo kbs kcb kcc kcd kce kck kcl kcs kct kdb kdc kde kdk kdl kdo kds kdt ke- keb kec ked kee kek kel keo kes ket kkb kkc kke kkk kkl kks kkt kl- klb klc kld klo kls klt kob koc kod koe kok kol koo kos kot ksb ksc ksd kse ksk ksl kso kss kst ktb ktc kte ktk ktl kto kts ktt lbb lbc lbd lbe lbk lbl lbo lbs lbt lcb lcc lcd lce lck lcl lco lcs lct ldb ldc ldd lde ldk ldl ldo lds ldt leb lec led lee lek lel leo les let lkb lkl lks lkt llb llc lld lle llk lll llo lls llt lob loc lod loe lok lol loo los lot lsb lsc lsd lse lsk lsl lso lss lst ltb ltc ltd lte ltk ltl lto lts ltt ob- obb obc obd obe obk obl obo obs obt oc- ocb occ ocd ock ocl oco ocs oct odb odc odd ode odl odo ods odt oeb oec oed oee oel oeo oes oet okb okc okd oke okk okl oko oks olb olc old ole olk oll olo ols olt oo- oob ooc ood ook ool ooo oos oot os- osb osc osd ose osk osl oso oss ost ot- otb otc otd ote otk otl oto ots ott sbb sbc sbd sbe sbk sbl sbo sbs sbt scb scc scd sce sck scl sco scs sct sdb sdc sdd sde sdk sdl sdo sds sdt se- seb sec sed see sek sel seo ses set sk- skb skc skd ske skk skl sko sks skt slb slc sld sle slk sll slo sls slt sob soc sod soe sok sol soo sos sot ss- ssb ssc ssd sse ssk ssl sso sss sst stb stc std ste stk stl sto sts stt tbb tbc tbd tbe tbk tbl tbo tbs tbt tcb tcc tcd tce tck tcl tco tcs tct tdb tdc tdd tde tdk tdl tdo tds tdt te- teb tec ted tee tek tel teo tes tet tkb tkc tke tkk tkl tko tks tkt tlc tld tle tlk tll tlo tls tlt to- tob toc tod toe tok tol too tos tot tsb tsc tsd tse tsk tsl tso tss tst ttb ttc ttd tte ttk ttl tto tts ttt

-ose bbbb bbbs bbdd bbdo bbeb bbet bblb bbls bcbc bcbs bccc bccl bccs bcde bcds bcec bces bcet bcos bcsc bcsl bcss bctc bcts bdbc bddc bdes bdle bdls bdos bdsd bebb bebe bebo beck becs bede bedl bedo beds beeb beed beek beel bees beet beke beko beks beld bele belk bell belo bels belt beo- beod beok beos beot bes- bese besk beso bess best betc bete beto bets bett blbt bldc bleb bled blee blek bleo bles blet blkb blkd blls blob bloc blod blok bloo blot blss blst blts bobb bobe bobo bobs boce bock boco bocs bodb bode bodo bods boec boee boel boeo boes boet boke boko boks bold bole bolk boll bolo bols bolt boob booc bood booe book bool boos boot bosc bose bosk boso boss bost botb botd bote boto bots bott bsbd bscs bsdl bseb bsec bsed bsee bses bset bskt bslc bsod bsos bssc bssd bsse bsts btcc btcl btcs btdt btec btek btob btss bttb c-bo c-cd cbbc cbbs cbcc cbce cbcl cbcs cbct cbdb cbdc cbdo cbds cbec cbee cbet cbkl cbko cblb cblc cbol cbot cbsc cbse cbtc cbtl ccbc cccb cccc cccl cccs ccdc ccds cced ccee ccel cclc ccls ccob ccoc ccod ccsd ccsl ccss ccst cctb cctc cctl cctt cd-e cdcs cddb cddl cdec cdes cdls cdos cdot cdss cebs cec- cece ceco cecs cect cedd cede cedo cedt ceeb ceec ceel cees ceke cel- celc cele cell celo cels celt ceol ceos cesc cese cess cest cet- cete ceto cets ckbc ckbe ckck ckcl ckco ckcs ckdo ckob ckoc ckoo ckos ckot cksb cksl