-er -ic c-- ccc ccd cce cci ccl ccr ccs ccu cdc cdd cde cdi cdl cdq cdr cds cdu ce- cec ced cee cei cel ceq cer ces ceu ci- cic cid cie cii cil ciq cir cis ciu cl- clc cld cle cli cll clr cls clu cqc cqd cqi cql cqs crc crd cre cri crl crq crr crs cru csc csd cse csi csl csq csr css csu cuc cud cue cui cul cuq cur cus cuu dcc dcd dce dci dcl dcr dcs dcu ddc ddd dde ddi ddl ddq ddr dds ddu de- dec ded dee dei del deq der des deu di- dic did die dii dil diq dir dis diu dl- dlc dld dle dli dll dlr dls dlu dqe dqs drc drd dre dri drl drq drr drs dru dsc dsd dse dsi dsl dsq dsr dss dsu duc dud due dui dul dur dus ec- ecc ecd ece eci ecl ecq ecr ecs ecu ed- edc edd ede edi edl edr eds edu eec eed eee eel eer ees eic eid eie eii eil eir eis eiu elc eld ele eli ell elr els elu eqe eqq eqs equ erc erd ere eri erl erq err ers eru es- esc esd ese esi esl esq esr ess esu eu- euc eud eue eui eul eur eus i-d icc icd ice ici icl icq icr ics icu idc idd ide idi idl idq idr ids idu ie- iec ied iee iei iel ier ies iic iid iie iii iil iir iis iiu il- ilc ild ile ili ill ilq ilr ils ilu iqc iqd iqe iqs iqu ir- irc ird ire iri irl irq irr irs iru is- isc isd ise isi isl isq isr iss isu iu- iuc iud iue iui iur ius lcc lcd lce lci lcl lcq lcr lcs lcu ldc ldd lde ldi ldl ldr lds ldu lec led lee lei lel leq ler les leu lic lid lie lii lil liq lir lis liu llc lld lle lli lll llq llr lls llu lqr lrc lrd lri lrr lrs lru lsc lsd lse lsi lsl lsq lsr lss lsu luc lud lue lui lul lur lus luu qcc qcd qci qcl qcs qdr qds qec qed qee qic qid qie qil qir qis qiu qls qqq qqu qrc qre qri qrl qrs qru qsc qsd qsi qsl qsr qu- qud que qui qul qur qus rcc rcd rce rci rcl rcr rcs rcu rdc rdd rde rdi rdl rdr rds rdu re- rec red ree rei rel req rer res reu ric rid rie rii ril riq rir ris rlc rld rle rli rll rlr rls rlu rqc rqs rrc rrd rri rrl rrq rrr rrs rru rsc rsd rse rsi rsl rsq rsr rss rsu ruc rud rue rui rur rus ruu scc scd sce sci scl scr scs scu sdc sdd sde sdi sdl sdq sdr sds sdu se- sec sed see sei sel seq ser ses seu sic sid sie sii sil siq sir sis siu slc sld sle sli sll slq slr sls slu sqd sqi sql sqq sqr sqs sr- src srd sre sri srl srq srr srs ss- ssc ssd sse ssi ssl ssq ssr sss ssu suc sud sue sui sul suq sur sus suu ucc ucd uce uci ucl ucr ucs ucu udc udd ude udi udl udr uds udu uec ued uee uei uel uer ues uic uid uie uii uil uiq uir uis uiu ulc uld ule uli ull ulr uls ulu ur- urc urd ure uri url urr urs uru usc usd use usi usl usr uss usu uuc uue uur uus uuu