-ic c-- ccc ccd cce cci cck ccn cco ccp cdc cdd cde cdi cdk cdn cdo cdp ce- cec ced cee cei cek cen ceo cep ci- cic cid cie cii cik cin cio cip ckc ckd cki cko cn- cnc cnd cne cni cnn cno cnp co- coc cod coe coi cok con coo cop cpc cpd cpe cpi cpk cpn cpo cpp dcc dcd dce dci dck dcn dco dcp ddc ddd dde ddi ddk ddn ddo ddp de- dec ded dee dei dek den deo dep di- dic did die dii dik din dio dip dkc dke dki dkk dko dkp dnc dnd dne dni dnk dnn dno dnp doc dod doe doi dok don doo dop dpc dpd dpe dpi dpk dpn dpo dpp ec- ecc ecd ece eci eck ecn eco ed- edc edd ede edi edk edn edo edp eec eed eee eek een eeo eep eic eid eie eii eik ein eio eip ekc ekd eke eki eko ekp en- enc end ene eni enk enn eno enp eo- eoc eod eoe eoi eok eon eoo eop ep- epc epd epe epi epn epo epp i-d icc icd ice ici ick icn ico icp idc idd ide idi idk idn ido idp ie- iec ied iee iei iek ien iep iic iid iie iii iin iio iip ikc ike iki ikk iko in- inc ind ine ini ink inn ino inp io- ioc iod ioe ioi ion ioo iop ipc ipd ipe ipi ipn ipo ipp kcc kcd kce kci kck kcn kcp kdc kde kdk kdo kdp ke- kec ked kee kei kek ken keo kep kic kid kie kii kik kin kio kip kkc kke kki kkk kkn kkp kn- knc knd kne kni knk knn kno knp koc kod koe koi kok kon koo kop kpc kpd kpe kpi kpk kpn kpo kpp n-i ncc ncd nce nci nck ncn nco ncp ndc ndd nde ndi ndk ndn ndo ndp ne- nec ned nee nei nek nen neo nep nic nid nie nii nik nin nio nip nkc nke nki nkk nkn nko nkp nnc nne nni nnk nnn nno nnp no- noc nod noe noi nok non noo nop npc npd npe npi npn npo npp o-i oc- occ ocd oci ock ocn oco ocp odc odd ode odi odn odo odp oec oed oee oei oen oeo oep oic oid oie oii oik oin oio oip okc okd oke oki okk oko okp on- onc ond one oni onk onn ono onp oo- ooc ood ooi ook oon ooo oop op- opc opd ope opi opk opn opo opp p-p pcc pcd pce pci pck pcn pco pcp pdc pdd pde pdi pdk pdn pdo pdp pec ped pee pei pek pen peo pep pic pid pie pii pik pin pio pip pkc pkd pke pki pkn pko pkp pn- pnc pnd pne pni pnk pnn pno pnp poc pod poe poi pok pon poo pop ppc ppd ppe ppi ppk ppn ppo ppp