-er -up ddd dde ddi ddl ddp ddr ddu de- ded dee dei del dep der deu di- did die dii dil dip dir diu dl- dld dle dli dll dlp dlr dlu dpd dpe dpi dpl dpp dpr dpu drd dre dri drl drp drr dru dud due dui dul dup dur ed- edd ede edi edl edp edr edu eed eee eel eep eer eid eie eii eil eip eir eiu eld ele eli ell elp elr elu ep- epd epe epi epl epp epr epu erd ere eri erl erp err eru eu- eud eue eui eul eup eur i-d idd ide idi idl idp idr idu ie- ied iee iei iel iep ier iid iie iii iil iip iir iiu il- ild ile ili ill ilp ilr ilu ipd ipe ipi ipl ipp ipr ipu ir- ird ire iri irl irp irr iru iu- iud iue iui iup iur l-p ldd lde ldi ldl ldp ldr ldu led lee lei lel lep ler leu lid lie lii lil lip lir liu lld lle lli lll llp llr llu lpd lpe lpi lpl lpp lpr lpu lrd lri lrp lrr lru lud lue lui lul lup lur luu p-p pdd pde pdi pdl pdp pdr pdu ped pee pei pel pep per peu pid pie pii pil pip pir piu pld ple pli pll plp plr plu ppd ppe ppi ppl ppp ppr ppu prd pre pri prl prp prr pru pud pue pui pul pup pur puu rdd rde rdi rdl rdp rdr rdu re- red ree rei rel rep rer reu rid rie rii ril rip rir rld rle rli rll rlp rlr rlu rpd rpe rpi rpl rpp rpr rpu rrd rri rrl rrp rrr rru rud rue rui rup rur ruu udd ude udi udl udp udr udu ued uee uei uel uep uer uid uie uii uil uip uir uiu uld ule uli ull ulp ulr ulu up- upd upe upi upp upr upu ur- urd ure uri url urp urr uru uue uur uuu