c-- ccc ccd cch cco ccr ccu cdc cdd cdh cdo cdr cdu ch- chc chd chh cho chr chu co- coc cod coh coo cor cou crc crd crh cro crr cru cuc cud cuh cuo cur cuu dcc dcd dco dcr dcu ddc ddd ddh ddo ddr ddu dh- dhc dhd dhh dho dhr dhu doc dod doh doo dor dou drc drd dro drr dru duc dud duh duo dur hcc hcd hch hco hcr hdc hdd hdh hdo hdr hdu hhc hhd hhh hho hhr hhu hoc hod hoh hoo hor hou hr- hrc hrd hrh hro hrr hru huc hud huh huo hur huu oc- occ ocd och oco ocr ocu odc odd odh odo odr odu ohc ohd ohh oho ohr ohu oo- ooc ood ooh ooo oor or- orc ord orh oro orr oru ou- ouc oud ouh ouo our rcc rcd rch rco rcr rcu rdc rdd rdh rdo rdr rdu rh- rhc rhd rhh rho rhr rhu roc rod roh roo ror rou rrc rrd rrh rrr rru ruc rud ruh ruo rur ruu ucc ucd uch uco ucr ucu udc udd udo udr udu uhc uhd uhh uho uhr uhu uoc uod uoo uor ur- urc urd uro urr uru uuc uur uuu