-up c-- ccc ccd cce ccp ccu cdc cdd cde cdp cdu ce- cec ced cee cep ceu cpc cpd cpe cpp cpu cuc cud cue cup cuu dcc dcd dce dcp dcu ddc ddd dde ddp ddu de- dec ded dee dep deu dpc dpd dpe dpp dpu duc dud due dup ec- ecc ecd ece ecu ed- edc edd ede edp edu eec eed eee eep ep- epc epd epe epp epu eu- euc eud eue eup p-p pcc pcd pce pcp pcu pdc pdd pde pdp pdu pec ped pee pep peu ppc ppd ppe ppp ppu puc pud pue pup puu ucc ucd uce ucp ucu udc udd ude udp udu uec ued uee uep up- upc upd upe upp upu uuc uue uuu