-ic c-- ccc cch cci cck cco ch- chc chh chi chk cho ci- cic cih cii cik cio ckc ckh cki cko co- coc coh coi cok coo h-i hcc hch hci hck hco hhc hhh hhi hhk hho hic hih hii hik hio hkh hki hkk hko hoc hoh hoi hok hoo icc ich ici ick ico ihc ihh ihi ihk iho iic iih iii iio ikc iki ikk iko io- ioc ioh ioi ioo kcc kch kci kck khh khi khk kho kic kih kii kik kio kkc kkh kki kkk koc koh koi kok koo o-i oc- occ och oci ock oco ohc ohh ohi oho oic oii oik oio okc oki okk oko oo- ooc ooh ooi ook ooo