-ey -ic c-- ccc ccd cce cci ccp cdc cdd cde cdi cdp cdy ce- cec ced cee cei cep cey ci- cic cid cie cii cip cpc cpd cpe cpi cpp cyc cyd cye cyp dcc dcd dce dci dcp ddc ddd dde ddi ddp ddy de- dec ded dee dei dep dey di- dic did die dii dip diy dpc dpd dpe dpi dpp dy- dyc dyd dye dyp dyy ec- ecc ecd ece eci ed- edc edd ede edi edp edy eec eed eee eep eey eic eid eie eii eip ep- epc epd epe epi epp eyc eyd eye eyp i-d icc icd ice ici icp icy idc idd ide idi idp idy ie- iec ied iee iei iep iey iic iid iie iii iip ipc ipd ipe ipi ipp ipy iyc iye iyy p-p pcc pcd pce pci pcp pdc pdd pde pdi pdp pec ped pee pei pep pey pic pid pie pii pip ppc ppd ppe ppi ppp py- pyc pyd pye ycc ycd yce yci ycp ycy yde ydy yec yed yee yei yep yey yid yie yii yip ypd yyc yye yyy