-er -ic c-- ccc ccd cce ccf cch cci cck cco ccp ccr ccs cdc cdd cde cdf cdh cdi cdk cdo cdp cdr cds ce- cec ced cee cef ceh cei cek ceo cep cer ces cfc cfd cfe cff cfh cfi cfk cfo cfp cfr cfs ch- chc chd che chf chh chi chk cho chp chr chs ci- cic cid cie cif cih cii cik cio cip cir cis ckc ckd ckh cki cko cks co- coc cod coe cof coh coi cok coo cop cor cos cpc cpd cpe cpf cph cpi cpk cpo cpp cpr cps crc crd cre crf crh cri crk cro crp crr crs csc csd cse csf csh csi csk cso csp csr css dcc dcd dce dcf dci dck dco dcp dcr dcs ddc ddd dde ddf ddh ddi ddk ddo ddp ddr dds de- dec ded dee def deh dei dek deo dep der des dfc dfd dfe dff dfh dfi dfk dfo dfp dfr dfs dh- dhc dhd dhe dhf dhh dhi dhk dho dhp dhr dhs di- dic did die dif dih dii dik dio dip dir dis dkc dke dki dkk dko dkp dkr dks doc dod doe dof doh doi dok doo dop dor dos dpc dpd dpe dpf dph dpi dpk dpo dpp dpr dps drc drd dre dri drk dro drp drr drs dsc dsd dse dsf dsh dsi dsk dso dsp dsr dss ec- ecc ecd ece ecf ech eci eck eco ecr ecs ed- edc edd ede edf edh edi edk edo edp edr eds eec eed eee eef eek eeo eep eer ees ef- efc efd efe eff efh efi efo efp efr efs ehc ehd ehe ehf ehh ehi eho ehp ehr ehs eic eid eie eif eii eik eio eip eir eis ekc ekd eke ekf ekh eki eko ekp ekr eks eo- eoc eod eoe eof eoh eoi eok eoo eop eor eos ep- epc epd epe epf eph epi epo epp epr eps erc erd ere erf erh eri erk ero erp err ers es- esc esd ese esf esh esi esk eso esp esr ess fcc fcd fce fcf fci fck fco fcp fcr fcs fdc fdd fde fdf fdh fdi fdk fdo fdp fdr fds fec fed fee fef feh fei fek feo fep fer fes ffc ffd ffe fff ffh ffi ffk ffo ffp ffr ffs fhc fhe fhf fhh fhi fho fhp fhr fhs fic fid fie fif fih fii fik fip fir fis fkc fkf fki fkk fkp foc foe fof foh foi fok foo fop for fos fpc fpd fpe fph fpi fpk fpo fpp fpr fps frc frd fre frf frh fri frk fro frp frr frs fsc fsd fse fsf fsh fsi fsk fso fsp fsr fss h-i hcc hcd hce hcf hch hci hck hco hcp hcr hcs hdc hdd hde hdf hdh hdi hdk hdo hdp hdr hds he- hec hed hee hef heh hei hek heo hep her hes hfc hfd hfe hff hfh hfi hfk hfo hfp hfr hfs hhc hhd hhe hhf hhh hhi hhk hho hhp hhr hhs hic hid hie hif hih hii hik hio hip hir his hkd hkf hkh hki hkk hko hkp hkr hks hoc hod hoe hof hoh hoi hok hoo hop hor hos hpc hpd hpe hpf hph hpi hpk hpo hpp hpr hps hr- hrc hrd hre hrf hrh hri hrk hro hrp hrr hrs hsc hsd hse hsf hsh hsi hsk hsp hsr hss i-d i-f icc icd ice icf ich ici ick ico icp icr ics idc idd ide idf idh idi idk ido idp idr ids ie- iec ied iee ief iei iek iep ier ies ifc ifd ife iff ifi ifo ifp ifr ifs ihc ihd ihe ihf ihh ihi ihk iho ihp ihr ihs iic iid iie iif iih iii iio iip iir iis ikc ike ikf iki ikk iko ikr iks io- ioc iod ioe iof ioh ioi ioo iop ior ios ipc ipd ipe ipf ipi ipo ipp ipr ips ir- irc ird ire irf iri irk iro irp irr irs is- isc isd ise isf ish isi isk iso isp isr iss kcc kcd kce kch kci kck kcp kcr kcs kdc kde kdf kdh kdk kdo kdp kdr kds ke- kec ked kee kef keh kei kek keo kep ker kes kfc kfd kff kfh kfi kfo kfs khe khf khh khi khk kho khr khs kic kid kie kif kih kii kik kio kip kir kis kkc kke kkh kki kkk kkp kkr kks koc kod koe kof koh koi kok koo kop kor kos kpc kpd kpe kpf kph kpi kpk kpo kpp kpr kps krc krd krf kri krk kro krp krr krs ksc ksd kse ksf ksh ksi ksk kso ksp ksr kss o-i oc- occ ocd ocf och oci ock oco ocp ocr ocs odc odd ode odf odh odi odo odp odr ods oec oed oee oef oeh oei oeo oep oer oes of- ofc ofd ofe off ofi ofo ofp ofr ofs ohc ohd ohe ohf ohh ohi oho ohp ohr ohs oic oid oie oif oii oik oio oip oir ois okc okd oke oki okk oko okp okr oks oo- ooc ood oof ooh ooi ook ooo oop oor oos op- opc opd ope opf oph opi opk opo opp opr ops or- orc ord ore orf orh ori ork oro orp orr ors os- osc osd ose osf osh osi osk oso osp osr oss p-p pcc pcd pce pcf pch pci pck pco pcp pcr pcs pdc pdd pde pdf pdh pdi pdk pdo pdp pdr pds pec ped pee pef peh pei pek peo pep per pes pfc pfd pfe pff pfi pfk pfo pfp pfr pfs phc phd phe phf phi phk pho php phr phs pic pid pie pif pih pii pik pio pip pir pis pkc pkd pke pkf pki pko