c-- ccc ccd cch ccn cco ccs cdc cdd cdh cdn cdo cds ch- chc chd chh chn cho chs cn- cnc cnd cnh cnn cno cns co- coc cod coh con coo cos csc csd csh csn cso css dcc dcd dcn dco dcs ddc ddd ddh ddn ddo dds dh- dhc dhd dhh dho dhs dnc dnd dnh dnn dno dns doc dod doh don doo dos dsc dsd dsh dsn dso dss hcc hcd hch hcn hco hcs hdc hdd hdh hdn hdo hds hhc hhd hhh hhn hho hhs hnc hnd hnh hnn hno hns hoc hod hoh hon hoo hos hsc hsd hsh hsn hss ncc ncd nch ncn nco ncs ndc ndd ndh ndn ndo nds nhc nhd nhh nhn nhs nnc nnh nnn nno nns no- noc nod noh non noo nos nsc nsd nsh nsn nso nss oc- occ ocd och ocn oco ocs odc odd odh odn odo ods ohc ohd ohh ohn oho ohs on- onc ond onh onn ono ons oo- ooc ood ooh oon ooo oos os- osc osd osh osn oso oss scc scd sch scn sco scs sdc sdd sdh sdn sdo sds sh- shc shd shh shn sho shs snc snd snn sno sns soc sod soh son soo sos ss- ssc ssd ssh ssn sso sss