-er -up ddd dde ddi ddo ddp ddq ddr dds ddu de- ded dee dei deo dep deq der des deu di- did die dii dio dip diq dir dis diu dod doe doi doo dop doq dor dos dou dpd dpe dpi dpo dpp dpr dps dpu dqe dqs drd dre dri dro drp drq drr drs dru dsd dse dsi dso dsp dsq dsr dss dsu dud due dui duo dup dur dus ed- edd ede edi edo edp edr eds edu eed eee eeo eep eer ees eid eie eii eio eip eir eis eiu eo- eod eoe eoi eoo eop eoq eor eos eou ep- epd epe epi epo epp epq epr eps epu eqe eqp eqq eqs equ erd ere eri ero erp erq err ers eru es- esd ese esi eso esp esq esr ess esu eu- eud eue eui eup eur eus i-d idd ide idi ido idp idq idr ids idu ie- ied iee iei iep ier ies iid iie iii iio iip iir iis iiu io- iod ioe ioi ioo iop ior ios iou ipd ipe ipi ipo ipp ipr ips ipu iqd iqe iqs iqu ir- ird ire iri iro irp irq irr irs iru is- isd ise isi iso isp isq isr iss isu iu- iud iue iui iup iur ius o-i odd ode odi odo odp odr ods odu oed oee oei oeo oep oer oes oid oie oii oio oip oir ois oiu oo- ood ooi ooo oop oor oos op- opd ope opi opo opp opq opr ops oqo or- ord ore ori oro orp orr ors oru os- osd ose osi oso osp osq osr oss osu ou- oud oue oui ouo oup our ous p-p pdd pde pdi pdo pdp pdq pdr pds pdu ped pee pei peo pep per pes peu pid pie pii pio pip piq pir pis piu pod poe poi poo pop por pos pou ppd ppe ppi ppo ppp ppq ppr pps ppu pqi pqq pqr pqs prd pre pri pro prp prq prr prs pru ps- psd pse psi pso psp psr pss psu pud pue pui pup pur pus puu qdr qds qed qee qeo qep qid qie qio qip qir qis qiu qoi qoo qop qor qos qpp qpr qps qqq qqu qre qri qrp qrs qru qsd qsi qso qsp qsr qu- qud que qui quo qur qus rdd rde rdi rdo rdp rdr rds rdu re- red ree rei reo rep req rer res reu rid rie rii rio rip riq rir ris rod roe roi roo rop ror ros rou rpd rpe rpi rpo rpp rpr rps rpu rqs rrd rri rrp rrq rrr rrs rru rsd rse rsi rso rsp rsq rsr rss rsu rud rue rui ruo rup rur rus ruu sdd sde sdi sdo sdp sdq sdr sds sdu se- sed see sei seo sep seq ser ses seu sid sie sii sio sip siq sir sis siu sod soe soi soo sop soq sor sos sou spd spe spi spo spp spq spr sps spu sqd sqi sqq sqr sqs sr- srd sre sri sro srp srq srr srs ss- ssd sse ssi sso ssp ssq ssr sss ssu sud sue sui suo sup suq sur sus suu udd ude udi udo udp udr uds udu ued uee uei uep uer ues uid uie uii uio uip uiq uir uis uiu uod uoe uoo uop uor uos up- upd upe upi upo upp upr ups upu ur- urd ure uri uro urp urr urs uru usd use usi uso usp usr uss usu uue uur uus uuu