-ic c-- ccc ccd cce cci ccn ccp cdc cdd cde cdi cdn cdp ce- cec ced cee cei cen cep ci- cic cid cie cii cin cip cn- cnc cnd cne cni cnn cnp cpc cpd cpe cpi cpn cpp dcc dcd dce dci dcn dcp ddc ddd dde ddi ddn ddp de- dec ded dee dei den dep di- dic did die dii din dip dnc dnd dne dni dnn dnp dpc dpd dpe dpi dpn dpp ec- ecc ecd ece eci ecn ed- edc edd ede edi edn edp eec eed eee een eep eic eid eie eii ein eip en- enc end ene eni enn enp ep- epc epd epe epi epn epp i-d icc icd ice ici icn icp idc idd ide idi idn idp ie- iec ied iee iei ien iep iic iid iie iii iin iip in- inc ind ine ini inn inp ipc ipd ipe ipi ipn ipp n-i ncc ncd nce nci ncn ncp ndc ndd nde ndi ndn ndp ne- nec ned nee nei nen nep nic nid nie nii nin nip nnc nne nni nnn nnp npc npd npe npi npn npp p-p pcc pcd pce pci pcn pcp pdc pdd pde pdi pdn pdp pec ped pee pei pen pep pic pid pie pii pin pip pn- pnc pnd pne pni pnn pnp ppc ppd ppe ppi ppn ppp