-er c-- ccc ccd cce cch cco ccp ccr ccs cdc cdd cde cdh cdo cdp cdr cds ce- cec ced cee ceh ceo cep cer ces ch- chc chd che chh cho chp chr chs co- coc cod coe coh coo cop cor cos cpc cpd cpe cph cpo cpp cpr cps crc crd cre crh cro crp crr crs csc csd cse csh cso csp csr css dcc dcd dce dco dcp dcr dcs ddc ddd dde ddh ddo ddp ddr dds de- dec ded dee deh deo dep der des dh- dhc dhd dhe dhh dho dhp dhr dhs doc dod doe doh doo dop dor dos dpc dpd dpe dph dpo dpp dpr dps drc drd dre dro drp drr drs dsc dsd dse dsh dso dsp dsr dss ec- ecc ecd ece ech eco ecr ecs ed- edc edd ede edh edo edp edr eds eec eed eee eeo eep eer ees ehc ehd ehe ehh eho ehp ehr ehs eo- eoc eod eoe eoh eoo eop eor eos ep- epc epd epe eph epo epp epr eps erc erd ere erh ero erp err ers es- esc esd ese esh eso esp esr ess hcc hcd hce hch hco hcp hcr hcs hdc hdd hde hdh hdo hdp hdr hds he- hec hed hee heh heo hep her hes hhc hhd hhe hhh hho hhp hhr hhs hoc hod hoe hoh hoo hop hor hos hpc hpd hpe hph hpo hpp hpr hps hr- hrc hrd hre hrh hro hrp hrr hrs hsc hsd hse hsh hsp hsr hss oc- occ ocd och oco ocp ocr ocs odc odd ode odh odo odp odr ods oec oed oee oeh oeo oep oer oes ohc ohd ohe ohh oho ohp ohr ohs oo- ooc ood ooh ooo oop oor oos op- opc opd ope oph opo opp opr ops or- orc ord ore orh oro orp orr ors os- osc osd ose osh oso osp osr oss p-p pcc pcd pce pch pco pcp pcr pcs pdc pdd pde pdh pdo pdp pdr pds pec ped pee peh peo pep per pes phc phd phe pho php phr phs poc pod poe poh poo pop por pos ppc ppd ppe pph ppo ppp ppr pps prc prd pre prh pro prp prr prs ps- psc psd pse psh pso psp psr pss rcc rcd rce rch rco rcp rcr rcs rdc rdd rde rdh rdo rdp rdr rds re- rec red ree reh reo rep rer res rh- rhc rhd rhe rhh rho rhp rhr rhs roc rod roe roh roo rop ror ros rpc rpd rpe rph rpo rpp rpr rps rrc rrd rrh rrp rrr rrs rsc rsd rse rsh rso rsp rsr rss scc scd sce sch sco scp scr scs sdc sdd sde sdh sdo sdp sdr sds se- sec sed see seh seo sep ser ses sh- shc shd she shh sho shp shr shs soc sod soe soh soo sop sor sos spc spd spe sph spo spp spr sps sr- src srd sre srh sro srp srr srs ss- ssc ssd sse ssh sso ssp ssr sss