-er -ic c-- ccc ccd cce cci cco ccr ccs ccu cdc cdd cde cdi cdo cdq cdr cds cdu ce- cec ced cee cei ceo ceq cer ces ceu ci- cic cid cie cii cio ciq cir cis ciu co- coc cod coe coi coo coq cor cos cou cqc cqd cqi cqo cqs crc crd cre cri cro crq crr crs cru csc csd cse csi cso csq csr css csu cuc cud cue cui cuo cuq cur cus cuu dcc dcd dce dci dco dcr dcs dcu ddc ddd dde ddi ddo ddq ddr dds ddu de- dec ded dee dei deo deq der des deu di- dic did die dii dio diq dir dis diu doc dod doe doi doo doq dor dos dou dqe dqs drc drd dre dri dro drq drr drs dru dsc dsd dse dsi dso dsq dsr dss dsu duc dud due dui duo dur dus ec- ecc ecd ece eci eco ecq ecr ecs ecu ed- edc edd ede edi edo edr eds edu eec eed eee eeo eer ees eic eid eie eii eio eir eis eiu eo- eoc eod eoe eoi eoo eoq eor eos eou eqe eqq eqs equ erc erd ere eri ero erq err ers eru es- esc esd ese esi eso esq esr ess esu eu- euc eud eue eui eur eus i-d icc icd ice ici ico icq icr ics icu idc idd ide idi ido idq idr ids idu ie- iec ied iee iei ier ies iic iid iie iii iio iir iis iiu io- ioc iod ioe ioi ioo ior ios iou iqc iqd iqe iqs iqu ir- irc ird ire iri iro irq irr irs iru is- isc isd ise isi iso isq isr iss isu iu- iuc iud iue iui iur ius o-i oc- occ ocd oci oco ocr ocs ocu odc odd ode odi odo odr ods odu oec oed oee oei oeo oer oes oic oid oie oii oio oir ois oiu oo- ooc ood ooi ooo oor oos oqo or- orc ord ore ori oro orr ors oru os- osc osd ose osi oso osq osr oss osu ou- ouc oud oue oui ouo our ous qcc qcd qci qco qcs qdr qds qec qed qee qeo qic qid qie qio qir qis qiu qoi qoo qor qos qqq qqu qrc qre qri qrs qru qsc qsd qsi qso qsr qu- qud que qui quo qur qus rcc rcd rce rci rco rcr rcs rcu rdc rdd rde rdi rdo rdr rds rdu re- rec red ree rei reo req rer res reu ric rid rie rii rio riq rir ris roc rod roe roi roo ror ros rou rqc rqs rrc rrd rri rrq rrr rrs rru rsc rsd rse rsi rso rsq rsr rss rsu ruc rud rue rui ruo rur rus ruu scc scd sce sci sco scr scs scu sdc sdd sde sdi sdo sdq sdr sds sdu se- sec sed see sei seo seq ser ses seu sic sid sie sii sio siq sir sis siu soc sod soe soi soo soq sor sos sou sqd sqi sqq sqr sqs sr- src srd sre sri sro srq srr srs ss- ssc ssd sse ssi sso ssq ssr sss ssu suc sud sue sui suo suq sur sus suu ucc ucd uce uci uco ucr ucs ucu udc udd ude udi udo udr uds udu uec ued uee uei uer ues uic uid uie uii uio uiq uir uis uiu uoc uod uoe uoo uor uos ur- urc urd ure uri uro urr urs uru usc usd use usi uso usr uss usu uuc uue uur uus uuu