-ic c-- ccc cch cci cco ccr ch- chc chh chi cho chr ci- cic cih cii cio cir co- coc coh coi coo cor crc crh cri cro crr h-i hcc hch hci hco hcr hhc hhh hhi hho hhr hic hih hii hio hir hoc hoh hoi hoo hor hr- hrc hrh hri hro hrr icc ich ici ico icr ihc ihh ihi iho ihr iic iih iii iio iir io- ioc ioh ioi ioo ior ir- irc iri iro irr o-i oc- occ och oci oco ocr ohc ohh ohi oho ohr oic oii oio oir oo- ooc ooh ooi ooo oor or- orc orh ori oro orr rcc rch rci rco rcr rh- rhc rhh rhi rho rhr ric rih rii rio rir roc roh roi roo ror rrc rrh rri rrr