-ic c-- ccc cci cck ccn cco ccr ci- cic cii cik cin cio cir ckc cki cko cn- cnc cni cnn cno cnr co- coc coi cok con coo cor crc cri crk crn cro crr icc ici ick icn ico icr iic iii iin iio iir ikc iki ikk iko ikr in- inc ini ink inn ino inr io- ioc ioi ion ioo ior ir- irc iri irk irn iro irr kcc kci kck kcn kcr kic kii kik kin kio kir kkc kki kkk kkn kkr kn- knc kni knk knn kno knr koc koi kok kon koo kor krc kri krk krn kro krr n-i ncc nci nck ncn nco ncr nic nii nik nin nio nir nkc nki nkk nkn nko nkr nnc nni nnk nnn nno no- noc noi nok non noo nor nrc nri nrk nrn nro nrr o-i oc- occ oci ock ocn oco ocr oic oii oik oin oio oir okc oki okk oko okr on- onc oni onk onn ono onr oo- ooc ooi ook oon ooo oor or- orc ori ork orn oro orr rcc rci rcn rco rcr ric rii rik rin rio rir rkc rkk rko rnc rni rnn rno rnr roc roi rok ron roo ror rrc rri rrk rrn rrr