-ic c-- ccc ccd cce ccf cci cck cco ccp cdc cdd cde cdf cdi cdk cdo cdp ce- cec ced cee cef cei cek ceo cep cfc cfd cfe cff cfi cfk cfo cfp ci- cic cid cie cif cii cik cio cip ckc ckd cki cko co- coc cod coe cof coi cok coo cop cpc cpd cpe cpf cpi cpk cpo cpp dcc dcd dce dcf dci dck dco dcp ddc ddd dde ddf ddi ddk ddo ddp de- dec ded dee def dei dek deo dep dfc dfd dfe dff dfi dfk dfo dfp di- dic did die dif dii dik dio dip dkc dke dki dkk dko dkp doc dod doe dof doi dok doo dop dpc dpd dpe dpf dpi dpk dpo dpp ec- ecc ecd ece ecf eci eck eco ed- edc edd ede edf edi edk edo edp eec eed eee eef eek eeo eep ef- efc efd efe eff efi efo efp eic eid eie eif eii eik eio eip ekc ekd eke ekf eki eko ekp eo- eoc eod eoe eof eoi eok eoo eop ep- epc epd epe epf epi epo epp fcc fcd fce fcf fci fck fco fcp fdc fdd fde fdf fdi fdk fdo fdp fec fed fee fef fei fek feo fep ffc ffd ffe fff ffi ffk ffo ffp fic fid fie fif fii fik fip fkc fkf fki fkk fkp foc foe fof foi fok foo fop fpc fpd fpe fpi fpk fpo fpp i-d i-f icc icd ice icf ici ick ico icp idc idd ide idf idi idk ido idp ie- iec ied iee ief iei iek iep ifc ifd ife iff ifi ifo ifp iic iid iie iif iii iio iip ikc ike ikf iki ikk iko io- ioc iod ioe iof ioi ioo iop ipc ipd ipe ipf ipi ipo ipp kcc kcd kce kci kck kcp kdc kde kdf kdk kdo kdp ke- kec ked kee kef kei kek keo kep kfc kfd kff kfi kfo kic kid kie kif kii kik kio kip kkc kke kki kkk kkp koc kod koe kof koi kok koo kop kpc kpd kpe kpf kpi kpk kpo kpp o-i oc- occ ocd ocf oci ock oco ocp odc odd ode odf odi odo odp oec oed oee oef oei oeo oep of- ofc ofd ofe off ofi ofo ofp oic oid oie oif oii oik oio oip okc okd oke oki okk oko okp oo- ooc ood oof ooi ook ooo oop op- opc opd ope opf opi opk opo opp p-p pcc pcd pce pcf pci pck pco pcp pdc pdd pde pdf pdi pdk pdo pdp pec ped pee pef pei pek peo pep pfc pfd pfe pff pfi pfk pfo pfp pic pid pie pif pii pik pio pip pkc pkd pke pkf pki pko pkp poc pod poe pof poi pok poo pop ppc ppd ppe ppf ppi ppk ppo ppp