-er -ic c-- ccc ccd cce cch cci cco ccp ccr ccs cdc cdd cde cdh cdi cdo cdp cdr cds ce- cec ced cee ceh cei ceo cep cer ces ch- chc chd che chh chi cho chp chr chs ci- cic cid cie cih cii cio cip cir cis co- coc cod coe coh coi coo cop cor cos cpc cpd cpe cph cpi cpo cpp cpr cps crc crd cre crh cri cro crp crr crs csc csd cse csh csi cso csp csr css dcc dcd dce dci dco dcp dcr dcs ddc ddd dde ddh ddi ddo ddp ddr dds de- dec ded dee deh dei deo dep der des dh- dhc dhd dhe dhh dhi dho dhp dhr dhs di- dic did die dih dii dio dip dir dis doc dod doe doh doi doo dop dor dos dpc dpd dpe dph dpi dpo dpp dpr dps drc drd dre dri dro drp drr drs dsc dsd dse dsh dsi dso dsp dsr dss ec- ecc ecd ece ech eci eco ecr ecs ed- edc edd ede edh edi edo edp edr eds eec eed eee eeo eep eer ees ehc ehd ehe ehh ehi eho ehp ehr ehs eic eid eie eii eio eip eir eis eo- eoc eod eoe eoh eoi eoo eop eor eos ep- epc epd epe eph epi epo epp epr eps erc erd ere erh eri ero erp err ers es- esc esd ese esh esi eso esp esr ess h-i hcc hcd hce hch hci hco hcp hcr hcs hdc hdd hde hdh hdi hdo hdp hdr hds he- hec hed hee heh hei heo hep her hes hhc hhd hhe hhh hhi hho hhp hhr hhs hic hid hie hih hii hio hip hir his hoc hod hoe hoh hoi hoo hop hor hos hpc hpd hpe hph hpi hpo hpp hpr hps hr- hrc hrd hre hrh hri hro hrp hrr hrs hsc hsd hse hsh hsi hsp hsr hss i-d icc icd ice ich ici ico icp icr ics idc idd ide idh idi ido idp idr ids ie- iec ied iee iei iep ier ies ihc ihd ihe ihh ihi iho ihp ihr ihs iic iid iie iih iii iio iip iir iis io- ioc iod ioe ioh ioi ioo iop ior ios ipc ipd ipe ipi ipo ipp ipr ips ir- irc ird ire iri iro irp irr irs is- isc isd ise ish isi iso isp isr iss o-i oc- occ ocd och oci oco ocp ocr ocs odc odd ode odh odi odo odp odr ods oec oed oee oeh oei oeo oep oer oes ohc ohd ohe ohh ohi oho ohp ohr ohs oic oid oie oii oio oip oir ois oo- ooc ood ooh ooi ooo oop oor oos op- opc opd ope oph opi opo opp opr ops or- orc ord ore orh ori oro orp orr ors os- osc osd ose osh osi oso osp osr oss p-p pcc pcd pce pch pci pco pcp pcr pcs pdc pdd pde pdh pdi pdo pdp pdr pds pec ped pee peh pei peo pep per pes phc phd phe phi pho php phr phs pic pid pie pih pii pio pip pir pis poc pod poe poh poi poo pop por pos ppc ppd ppe pph ppi ppo ppp ppr pps prc prd pre prh pri pro prp prr prs ps- psc psd pse psh psi pso psp psr pss rcc rcd rce rch rci rco rcp rcr rcs rdc rdd rde rdh rdi rdo rdp rdr rds re- rec red ree reh rei reo rep rer res rh- rhc rhd rhe rhh rhi rho rhp rhr rhs ric rid rie rih rii rio rip rir ris roc rod roe roh roi roo rop ror ros rpc rpd rpe rph rpi rpo rpp rpr rps rrc rrd rrh rri rrp rrr rrs rsc rsd rse rsh rsi rso rsp rsr rss scc scd sce sch sci sco scp scr scs sdc sdd sde sdh sdi sdo sdp sdr sds se- sec sed see seh sei seo sep ser ses sh- shc shd she shh shi sho shp shr shs sic sid sie sih sii sio sip sir sis soc sod soe soh soi soo sop sor sos spc spd spe sph spi spo spp spr sps sr- src srd sre srh sri sro srp srr srs ss- ssc ssd sse ssh ssi sso ssp ssr sss