-ic c-- ccc ccd cch cci cck cco ccs cdc cdd cdh cdi cdk cdo cds ch- chc chd chh chi chk cho chs ci- cic cid cih cii cik cio cis ckc ckd ckh cki cko cks co- coc cod coh coi cok coo cos csc csd csh csi csk cso css dcc dcd dci dck dco dcs ddc ddd ddh ddi ddk ddo dds dh- dhc dhd dhh dhi dhk dho dhs di- dic did dih dii dik dio dis dkc dki dkk dko dks doc dod doh doi dok doo dos dsc dsd dsh dsi dsk dso dss h-i hcc hcd hch hci hck hco hcs hdc hdd hdh hdi hdk hdo hds hhc hhd hhh hhi hhk hho hhs hic hid hih hii hik hio his hkd hkh hki hkk hko hks hoc hod hoh hoi hok hoo hos hsc hsd hsh hsi hsk hss i-d icc icd ich ici ick ico ics idc idd idh idi idk ido ids ihc ihd ihh ihi ihk iho ihs iic iid iih iii iio iis ikc iki ikk iko iks io- ioc iod ioh ioi ioo ios is- isc isd ish isi isk iso iss kcc kcd kch kci kck kcs kdc kdh kdk kdo kds khh khi khk kho khs kic kid kih kii kik kio kis kkc kkh kki kkk kks koc kod koh koi kok koo kos ksc ksd ksh ksi ksk kso kss o-i oc- occ ocd och oci ock oco ocs odc odd odh odi odo ods ohc ohd ohh ohi oho ohs oic oid oii oik oio ois okc okd oki okk oko oks oo- ooc ood ooh ooi ook ooo oos os- osc osd osh osi osk oso oss scc scd sch sci sck sco scs sdc sdd sdh sdi sdk sdo sds sh- shc shd shh shi shk sho shs sic sid sih sii sik sio sis sk- skc skd skh ski skk sko sks soc sod soh soi sok soo sos ss- ssc ssd ssh ssi ssk sso sss