-er -up c-- ccc ccd cce ccl ccp ccr ccu cdc cdd cde cdl cdp cdr cdu ce- cec ced cee cel cep cer ceu cl- clc cld cle cll clp clr clu cpc cpd cpe cpl cpp cpr cpu crc crd cre crl crp crr cru cuc cud cue cul cup cur cuu dcc dcd dce dcl dcp dcr dcu ddc ddd dde ddl ddp ddr ddu de- dec ded dee del dep der deu dl- dlc dld dle dll dlp dlr dlu dpc dpd dpe dpl dpp dpr dpu drc drd dre drl drp drr dru duc dud due dul dup dur ec- ecc ecd ece ecl ecr ecu ed- edc edd ede edl edp edr edu eec eed eee eel eep eer elc eld ele ell elp elr elu ep- epc epd epe epl epp epr epu erc erd ere erl erp err eru eu- euc eud eue eul eup eur l-p lcc lcd lce lcl lcp lcr lcu ldc ldd lde ldl ldp ldr ldu lec led lee lel lep ler leu llc lld lle lll llp llr llu lpc lpd lpe lpl lpp lpr lpu lrc lrd lrp lrr lru luc lud lue lul lup lur luu p-p pcc pcd pce pcl pcp pcr pcu pdc pdd pde pdl pdp pdr pdu pec ped pee pel pep per peu plc pld ple pll plp plr plu ppc ppd ppe ppl ppp ppr ppu prc prd pre prl prp prr pru puc pud pue pul pup pur puu rcc rcd rce rcl rcp rcr rcu rdc rdd rde rdl rdp rdr rdu re- rec red ree rel rep rer reu rlc rld rle rll rlp rlr rlu rpc rpd rpe rpl rpp rpr rpu rrc rrd rrl rrp rrr rru ruc rud rue rup rur ruu ucc ucd uce ucl ucp ucr ucu udc udd ude udl udp udr udu uec ued uee uel uep uer ulc uld ule ull ulp ulr ulu up- upc upd upe upp upr upu ur- urc urd ure url urp urr uru uuc uue uur uuu