-er -ic bbb bbc bbe bbi bbl bbr bbs bcb bcc bce bci bcl bcr bcs bcv be- beb bec bee bei bel ber bes bev bi- bib bic bie bii bil bir bis biv blb blc ble bli bll blr bls blv brb bre bri brl brr brs brv bsb bsc bse bsi bsl bsr bss bsv bvb bvc bve bvi bvl bvr bvs bvv c-- cbb cbc cbe cbi cbl cbr cbs cbv ccb ccc cce cci ccl ccr ccs ccv ce- ceb cec cee cei cel cer ces cev ci- cib cic cie cii cil cir cis civ cl- clb clc cle cli cll clr cls clv crb crc cre cri crl crr crs crv csb csc cse csi csl csr css csv cvb cvc cve cvi cvl cvr cvs cvv ebb ebc ebe ebi ebl ebr ebs ebv ec- ecb ecc ece eci ecl ecr ecs ecv eeb eec eee eel eer ees eev eib eic eie eii eil eir eis eiv elb elc ele eli ell elr els elv erb erc ere eri erl err ers erv es- esb esc ese esi esl esr ess esv evb evc eve evi evl evr evs evv i-v ibb ibc ibe ibi ibl ibr ibs ibv icb icc ice ici icl icr ics icv ie- iec iee iei iel ier ies iev iib iic iie iii iil iir iis il- ilb ilc ile ili ill ilr ils ilv ir- irb irc ire iri irl irr irs irv is- isb isc ise isi isl isr iss isv ivb ivc ive ivi ivl ivr ivs ivv lbb lbc lbe lbi lbl lbr lbs lbv lcb lcc lce lci lcl lcr lcs lcv leb lec lee lei lel ler les lev lib lic lie lii lil lir lis liv llb llc lle lli lll llr lls llv lrb lrc lri lrr lrs lrv lsb lsc lse lsi lsl lsr lss lsv lvb lvc lve lvi lvl lvr lvs lvv rbb rbc rbe rbi rbl rbr rbs rcb rcc rce rci rcl rcr rcs rcv re- reb rec ree rei rel rer res rev rib ric rie rii ril rir ris riv rlc rle rli rll rlr rls rrb rrc rri rrl rrr rrs rsb rsc rse rsi rsl rsr rss rsv rvb rvc rve rvi rvl rvr rvs rvv sbb sbc sbe sbi sbl sbr sbs sbv scb scc sce sci scl scr scs scv se- seb sec see sei sel ser ses sev sib sic sie sii sil sir sis siv slb slc sle sli sll slr sls slv sr- srb src sre sri srl srr srs srv ss- ssb ssc sse ssi ssl ssr sss ssv svb svc sve svi svl svr svs svv v-e vbc vbi vbl vbr vbs vbv vcc vce vci vcl vcr vcs veb vec vee vei vel ver ves vi- vib vic vie vii vil vir vis viv vl- vlb vlc vle vll vls vlv vrb vrc vre vri vrr vrs vsb vsc vse vsi vsl vsr vss vsv vvb vvc vvi vvr vvs vvv