c-- ccc ccd cch ccp cdc cdd cdh cdp cdy ch- chc chd chh chp chy cpc cpd cph cpp cyc cyd cyp dcc dcd dcp ddc ddd ddh ddp ddy dh- dhc dhd dhh dhp dpc dpd dph dpp dy- dyc dyd dyp dyy hcc hcd hch hcp hcy hdc hdd hdh hdp hdy hhc hhd hhh hhp hhy hpc hpd hph hpp hpy hy- hyc hyd hyh hyp hyy p-p pcc pcd pch pcp pdc pdd pdh pdp phc phd php phy ppc ppd pph ppp py- pyc pyd ycc ycd ych ycp ycy ydy yhc ypd yyc yyy