-er -ic bbb bbc bbe bbi bbk bbr bbs bcb bcc bce bci bck bcr bcs bcv be- beb bec bee bei bek ber bes bev bi- bib bic bie bii bik bir bis biv bkb bkc bke bkk bkr bks bkv brb bre bri brk brr brs brv bsb bsc bse bsi bsk bsr bss bsv bvb bvc bve bvi bvk bvr bvs bvv c-- cbb cbc cbe cbi cbk cbr cbs cbv ccb ccc cce cci cck ccr ccs ccv ce- ceb cec cee cei cek cer ces cev ci- cib cic cie cii cik cir cis civ ckb ckc cki cks crb crc cre cri crk crr crs crv csb csc cse csi csk csr css csv cvb cvc cve cvi cvk cvr cvs cvv ebb ebc ebe ebi ebk ebr ebs ebv ec- ecb ecc ece eci eck ecr ecs ecv eeb eec eee eek eer ees eev eib eic eie eii eik eir eis eiv ekb ekc eke eki ekr eks ekv erb erc ere eri erk err ers erv es- esb esc ese esi esk esr ess esv evb evc eve evi evr evs evv i-v ibb ibc ibe ibi ibk ibr ibs ibv icb icc ice ici ick icr ics icv ie- iec iee iei iek ier ies iev iib iic iie iii iir iis ikb ikc ike iki ikk ikr iks ikv ir- irb irc ire iri irk irr irs irv is- isb isc ise isi isk isr iss isv ivb ivc ive ivi ivr ivs ivv kbb kbc kbe kbi kbk kbr kbs kcb kcc kce kci kck kcr kcs ke- keb kec kee kei kek ker kes kev kib kic kie kii kik kir kis kiv kkb kkc kke kki kkk kkr kks kkv krc kri krk krr krs krv ksb ksc kse ksi ksk ksr kss ksv kvb kvi kvk kvr kvs kvv rbb rbc rbe rbi rbk rbr rbs rcb rcc rce rci rcr rcs rcv re- reb rec ree rei rek rer res rev rib ric rie rii rik rir ris riv rkb rkc rke rkk rks rkv rrb rrc rri rrk rrr rrs rsb rsc rse rsi rsk rsr rss rsv rvb rvc rve rvi rvr rvs rvv sbb sbc sbe sbi sbk sbr sbs sbv scb scc sce sci sck scr scs scv se- seb sec see sei sek ser ses sev sib sic sie sii sik sir sis siv sk- skb skc ske ski skk skr sks sr- srb src sre sri srk srr srs srv ss- ssb ssc sse ssi ssk ssr sss ssv svb svc sve svi svk svr svs svv v-e vbc vbi vbk vbr vbs vbv vcc vce vci vcr vcs veb vec vee vei vek ver ves vi- vib vic vie vii vik vir vis viv vkb vrb vrc vre vri vrk vrr vrs vsb vsc vse vsi vsk vsr vss vsv vvb vvc vvi vvr vvs vvv

bbbb bbbs bbci bbeb bbrc bcbc bcbs bccc bcci bccs bcec bcer bces bcie bcis bcrs bcsc bcss bebb bebe bebi beci beck becs beeb beek beer bees beic beik beir beis beke beki beks berc bere beri berk berr bers bes- bese besk bess bevs bibb bibe bibi bibs bicc bice bici bick bics bieb bier bies biis bike birb bire biri birk birr birs bis- bisc bise bisk biss bive bivi brcb brce breb brec bree brei brek brer bres brev bric brie brik bris brkb brrr brrs brsb brsr brvi bsci bscs bseb bsec bsee bser bses bsic bssc bsse bvsc cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cber cbir cbkr cbre cbsc cbse cbsi cbvb cbve cbvr ccbc cccb cccc ccci cccs cccv ccee ccic ccii ccir ccis cciv ccrc ccre ccri ccrs ccsi ccss ccvi ccvs cebs cec- cece ceci cecs ceeb ceec cees ceke cer- cerc cere ceri cers cesc cese cesi cesr cess cibc cibe cibi cicc cici cicr cics ciee cier cies ciii ciis cikr cirb circ cire ciri cirk cirr cirs cis- cisc cise cisk cisr ciss cisv civc cive ckbc ckbe ckbi ckck ckcs ckcv cker ckrc cksb crbc crcc crce crcr cre- creb crec cree crei cres crib cric crie crik cris crkc crss cscb cscc csce csci cscr cscs csec csee cser csib csik csir csis csks csrc csrs csse cssr cvbs cvcc cver cvii cvrr cvss ebbc ebbr ebbs ebcc eber ebes ebic ebis ecbc ecbe eccb eccc ecce ecci eces ecib ecis ecks ecrc ecri ecrr ecrv ecsc ecse ecss eecs eeee eees eeke eeks eerc eers eese eesi eesk eick eics eiec eiei eier eies eike eiki eiks eire eirs eise eisk eiss ekeb ekek eker ekes ekis ekki eksi erbb erbe ercc erce ereb erec erei erer eres erev eric erie erik eris erke erki erks errc erre errs erse ersi erve ervi esbs escb esce esci escr escs esee esek eser eses esie esik esis eske esks esri esse essi ever eves evie evir evre evrs evsc evvk i-be ibcs ibec ibes ibie ibis ibrc ibri ibss icbc icbs iccb iccc icci iccr iccs icec icee icer ices icis icke icks icrc icre icrr icrs icsb icsc icse icsi icsr icss iecc ieie iere ieri iers iesc iesi iesr iies iiie iiii iiis iirc iirs iisc iisi iisr ikee iker ikes ikki ikri irbe ircc ircs iree irer ires iri- iric irie iris irki irks irrc irre irri irrs irse irvs isbe iscc isci iscr iscs iseb isec isee iser ises isic isie isis isri issc isse issi issr isss ivbv ivec iver ives ivic ivie ivre ivrs k-ci kbbb kbbc kbbe kbbi kbbk kbbr kbbs kbcb kbce kbci kbck kbcr kbcs kbeb kbec kbee kbek kber kbes kbev kbib kbic kbie kbik kbis kbkb kbkk kbkr kbkv kbrb kbrc kbre kbri kbrk kbrv kbsb kbsi kbsk kbsr kbss kbsv kbvb kbvc kbvr kcbc kcbi kcbk kcbr kcbs kccb kccc kcci kcck kccr kccv kceb kcec kcee kcei kcic kcie kcii kcir kcis