-ol b-p bbb bbc bbd bbe bbl bbo bbp bbs bcb bcc bcd bce bcl bco bcp bcs bdb bdc bdd bde bdl bdo bdp bds be- beb bec bed bee bel beo bep bes blb blc bld ble bll blo blp bls bob boc bod boe bol boo bop bos bpb bpc bpd bpe bpl bpo bpp bps bsb bsc bsd bse bsl bso bsp bss c-- cbb cbc cbd cbe cbl cbo cbp cbs ccb ccc ccd cce ccl cco ccp ccs cdb cdc cdd cde cdl cdo cdp cds ce- ceb cec ced cee cel ceo cep ces cl- clb clc cld cle cll clo clp cls co- cob coc cod coe col coo cop cos cpb cpc cpd cpe cpl cpo cpp cps csb csc csd cse csl cso csp css dbb dbc dbd dbe dbl dbo dbp dbs dcb dcc dcd dce dcl dco dcp dcs ddb ddc ddd dde ddl ddo ddp dds de- deb dec ded dee del deo dep des dl- dlb dlc dld dle dll dlo dlp dls dob doc dod doe dol doo dop dos dpb dpc dpd dpe dpl dpo dpp dps dsb dsc dsd dse dsl dso dsp dss ebb ebc ebd ebe ebl ebo ebp ebs ec- ecb ecc ecd ece ecl eco ecs ed- edb edc edd ede edl edo edp eds eeb eec eed eee eel eeo eep ees elb elc eld ele ell elo elp els eo- eob eoc eod eoe eol eoo eop eos ep- epb epc epd epe epl epo epp eps es- esb esc esd ese esl eso esp ess l-p lbb lbc lbd lbe lbl lbo lbp lbs lcb lcc lcd lce lcl lco lcp lcs ldb ldc ldd lde ldl ldo ldp lds leb lec led lee lel leo lep les llb llc lld lle lll llo llp lls lob loc lod loe lol loo lop los lpb lpc lpd lpe lpl lpo lpp lps lsb lsc lsd lse lsl lso lsp lss ob- obb obc obd obe obl obo obp obs oc- ocb occ ocd ocl oco ocp ocs odb odc odd ode odl odo odp ods oeb oec oed oee oel oeo oep oes olb olc old ole oll olo olp ols oo- oob ooc ood ool ooo oop oos op- opb opc opd ope opl opo opp ops os- osb osc osd ose osl oso osp oss p-p pbb pbc pbd pbe pbl pbo pbp pbs pcb pcc pcd pce pcl pco pcp pcs pdb pdc pdd pde pdl pdo pdp pds peb pec ped pee pel peo pep pes plb plc pld ple pll plo plp pls pob poc pod poe pol poo pop pos ppb ppc ppd ppe ppl ppo ppp pps ps- psb psc psd pse psl pso psp pss sbb sbc sbd sbe sbl sbo sbp sbs scb scc scd sce scl sco scp scs sdb sdc sdd sde sdl sdo sdp sds se- seb sec sed see sel seo sep ses slb slc sld sle sll slo slp sls sob soc sod soe sol soo sop sos spb spc spd spe spl spo spp sps ss- ssb ssc ssd sse ssl sso ssp sss