-er ddd dde ddi ddl ddq ddr dds ddu de- ded dee dei del deq der des deu di- did die dii dil diq dir dis diu dl- dld dle dli dll dlr dls dlu dqe dqs drd dre dri drl drq drr drs dru dsd dse dsi dsl dsq dsr dss dsu dud due dui dul dur dus ed- edd ede edi edl edr eds edu eed eee eel eer ees eid eie eii eil eir eis eiu eld ele eli ell elr els elu eqe eqq eqs equ erd ere eri erl erq err ers eru es- esd ese esi esl esq esr ess esu eu- eud eue eui eul eur eus i-d idd ide idi idl idq idr ids idu ie- ied iee iei iel ier ies iid iie iii iil iir iis iiu il- ild ile ili ill ilq ilr ils ilu iqd iqe iqs iqu ir- ird ire iri irl irq irr irs iru is- isd ise isi isl isq isr iss isu iu- iud iue iui iur ius ldd lde ldi ldl ldr lds ldu led lee lei lel leq ler les leu lid lie lii lil liq lir lis liu lld lle lli lll llq llr lls llu lqr lrd lri lrr lrs lru lsd lse lsi lsl lsq lsr lss lsu lud lue lui lul lur lus luu qdr qds qed qee qid qie qil qir qis qiu qls qqq qqu qre qri qrl qrs qru qsd qsi qsl qsr qu- qud que qui qul qur qus rdd rde rdi rdl rdr rds rdu re- red ree rei rel req rer res reu rid rie rii ril riq rir ris rld rle rli rll rlr rls rlu rqs rrd rri rrl rrq rrr rrs rru rsd rse rsi rsl rsq rsr rss rsu rud rue rui rur rus ruu sdd sde sdi sdl sdq sdr sds sdu se- sed see sei sel seq ser ses seu sid sie sii sil siq sir sis siu sld sle sli sll slq slr sls slu sqd sqi sql sqq sqr sqs sr- srd sre sri srl srq srr srs ss- ssd sse ssi ssl ssq ssr sss ssu sud sue sui sul suq sur sus suu udd ude udi udl udr uds udu ued uee uei uel uer ues uid uie uii uil uiq uir uis uiu uld ule uli ull ulr uls ulu ur- urd ure uri url urr urs uru usd use usi usl usr uss usu uue uur uus uuu