-ic c-- ccc cch cci cco ccs ch- chc chh chi cho chs ci- cic cih cii cio cis co- coc coh coi coo cos csc csh csi cso css h-i hcc hch hci hco hcs hhc hhh hhi hho hhs hic hih hii hio his hoc hoh hoi hoo hos hsc hsh hsi hss icc ich ici ico ics ihc ihh ihi iho ihs iic iih iii iio iis io- ioc ioh ioi ioo ios is- isc ish isi iso iss o-i oc- occ och oci oco ocs ohc ohh ohi oho ohs oic oii oio ois oo- ooc ooh ooi ooo oos os- osc osh osi oso oss scc sch sci sco scs sh- shc shh shi sho shs sic sih sii sio sis soc soh soi soo sos ss- ssc ssh ssi sso sss