-ic c-- ccc ccd cci ccn cco ccp ccs cdc cdd cdi cdn cdo cdp cds ci- cic cid cii cin cio cip cis cn- cnc cnd cni cnn cno cnp cns co- coc cod coi con coo cop cos cpc cpd cpi cpn cpo cpp cps csc csd csi csn cso csp css dcc dcd dci dcn dco dcp dcs ddc ddd ddi ddn ddo ddp dds di- dic did dii din dio dip dis dnc dnd dni dnn dno dnp dns doc dod doi don doo dop dos dpc dpd dpi dpn dpo dpp dps dsc dsd dsi dsn dso dsp dss i-d icc icd ici icn ico icp ics idc idd idi idn ido idp ids iic iid iii iin iio iip iis in- inc ind ini inn ino inp ins io- ioc iod ioi ion ioo iop ios ipc ipd ipi ipn ipo ipp ips is- isc isd isi isn iso isp iss n-i ncc ncd nci ncn nco ncp ncs ndc ndd ndi ndn ndo ndp nds nic nid nii nin nio nip nis nnc nni nnn nno nnp nns no- noc nod noi non noo nop nos npc npd npi npn npo npp nps nsc nsd nsi nsn nso nsp nss o-i oc- occ ocd oci ocn oco ocp ocs odc odd odi odn odo odp ods oic oid oii oin oio oip ois on- onc ond oni onn ono onp ons oo- ooc ood ooi oon ooo oop oos op- opc opd opi opn opo opp ops os- osc osd osi osn oso osp oss p-p pcc pcd pci pcn pco pcp pcs pdc pdd pdi pdn pdo pdp pds pic pid pii pin pio pip pis pn- pnc pnd pni pnn pno pnp pns poc pod poi pon poo pop pos ppc ppd ppi ppn ppo ppp pps ps- psc psd psi psn pso psp pss scc scd sci scn sco scp scs sdc sdd sdi sdn sdo sdp sds sic sid sii sin sio sip sis snc snd sni snn sno snp sns soc sod soi son soo sop sos spc spd spi spn spo spp sps ss- ssc ssd ssi ssn sso ssp sss