-er -ic -up c-- ccc ccd cce cci ccp ccr ccu ccz cdc cdd cde cdi cdp cdr cdu cdz ce- cec ced cee cei cep cer ceu cez ci- cic cid cie cii cip cir ciu cpc cpd cpe cpi cpp cpr cpu cpz crc crd cre cri crp crr cru crz cuc cud cue cui cup cur cuu cuz cz- czc czd cze dcc dcd dce dci dcp dcr dcu ddc ddd dde ddi ddp ddr ddu ddz de- dec ded dee dei dep der deu dez di- dic did die dii dip dir diu diz dpc dpd dpe dpi dpp dpr dpu dpz drc drd dre dri drp drr dru drz duc dud due dui dup dur duz dzd dze dzi dzp dzr dzu ec- ecc ecd ece eci ecr ecu ed- edc edd ede edi edp edr edu eec eed eee eep eer eic eid eie eii eip eir eiu ep- epc epd epe epi epp epr epu epz erc erd ere eri erp err eru erz eu- euc eud eue eui eup eur eze ezr ezz i-d icc icd ice ici icp icr icu icz idc idd ide idi idp idr idu ie- iec ied iee iei iep ier iic iid iie iii iip iir iiu ipc ipd ipe ipi ipp ipr ipu ir- irc ird ire iri irp irr iru iu- iuc iud iue iui iup iur iuz ize izi izu izz p-p pcc pcd pce pci pcp pcr pcu pdc pdd pde pdi pdp pdr pdu pdz pec ped pee pei pep per peu pez pic pid pie pii pip pir piu piz ppc ppd ppe ppi ppp ppr ppu ppz prc prd pre pri prp prr pru prz puc pud pue pui pup pur puu puz pzc pzp rcc rcd rce rci rcp rcr rcu rdc rdd rde rdi rdp rdr rdu re- rec red ree rei rep rer reu rez ric rid rie rii rip rir riz rpc rpd rpe rpi rpp rpr rpu rpz rrc rrd rri rrp rrr rru ruc rud rue rui rup rur ruu ruz rze ucc ucd uce uci ucp ucr ucu udc udd ude udi udp udr udu uec ued uee uei uep uer uic uid uie uii uip uir uiu up- upc upd upe upi upp upr upu upz ur- urc urd ure uri urp urr uru urz uuc uue uur uuu uzi uzu zce zec zed zee zep zer zez zid zie zip zir ziz zpc zpe zpi zpp zpr zpu zrp zuc zud zui zur zuz zzr zzz