c-- ccc cch ccn cco ccr ccs ch- chc chh chn cho chr chs cn- cnc cnh cnn cno cnr cns co- coc coh con coo cor cos crc crh crn cro crr crs csc csh csn cso csr css hcc hch hcn hco hcr hcs hhc hhh hhn hho hhr hhs hnc hnh hnn hno hns hoc hoh hon hoo hor hos hr- hrc hrh hrn hro hrr hrs hsc hsh hsn hsr hss ncc nch ncn nco ncr ncs nhc nhh nhn nhr nhs nnc nnh nnn nno nns no- noc noh non noo nor nos nrc nrn nro nrr nrs nsc nsh nsn nso nsr nss oc- occ och ocn oco ocr ocs ohc ohh ohn oho ohr ohs on- onc onh onn ono onr ons oo- ooc ooh oon ooo oor oos or- orc orh orn oro orr ors os- osc osh osn oso osr oss rcc rch rcn rco rcr rcs rh- rhc rhh rhn rho rhr rhs rnc rnh rnn rno rnr rns roc roh ron roo ror ros rrc rrh rrn rrr rrs rsc rsh rsn rso rsr rss scc sch scn sco scr scs sh- shc shh shn sho shr shs snc snn sno snr sns soc soh son soo sor sos sr- src srh srn sro srr srs ss- ssc ssh ssn sso ssr sss