-er -ic b-u bbb bbc bbd bbe bbi bbk bbr bbu bcb bcc bcd bce bci bck bcr bcu bdb bdc bdd bde bdi bdk bdr bdu be- beb bec bed bee bei bek ber beu bi- bib bic bid bie bii bik bir biu bkb bkc bke bkk bkr brb brd bre bri brk brr bru bub buc bud bue bui buk bur buu c-- cbb cbc cbd cbe cbi cbk cbr cbu ccb ccc ccd cce cci cck ccr ccu cdb cdc cdd cde cdi cdk cdr cdu ce- ceb cec ced cee cei cek cer ceu ci- cib cic cid cie cii cik cir ciu ckb ckc ckd cki crb crc crd cre cri crk crr cru cub cuc cud cue cui cuk cur cuu dbb dbc dbd dbe dbi dbk dbr dbu dcb dcc dcd dce dci dck dcr dcu ddb ddc ddd dde ddi ddk ddr ddu de- deb dec ded dee dei dek der deu di- dib dic did die dii dik dir diu dkb dkc dke dki dkk dkr dku drb drc drd dre dri drk drr dru dub duc dud due dui duk dur ebb ebc ebd ebe ebi ebk ebr ebu ec- ecb ecc ecd ece eci eck ecr ecu ed- edb edc edd ede edi edk edr edu eeb eec eed eee eek eer eib eic eid eie eii eik eir eiu ekb ekc ekd eke eki ekr eku erb erc erd ere eri erk err eru eu- eub euc eud eue eui eur i-d ibb ibc ibd ibe ibi ibk ibr ibu icb icc icd ice ici ick icr icu idb idc idd ide idi idk idr idu ie- iec ied iee iei iek ier iib iic iid iie iii iir iiu ikb ikc ike iki ikk ikr iku ir- irb irc ird ire iri irk irr iru iu- iub iuc iud iue iui iur kbb kbc kbd kbe kbi kbk kbr kbu kcb kcc kcd kce kci kck kcr kcu kdb kdc kde kdk kdr kdu ke- keb kec ked kee kei kek ker kib kic kid kie kii kik kir kiu kkb kkc kke kki kkk kkr kku krc krd kri krk krr kru kub kuc kud kue kui kuk kur kuu rbb rbc rbd rbe rbi rbk rbr rbu rcb rcc rcd rce rci rcr rcu rdb rdc rdd rde rdi rdr rdu re- reb rec red ree rei rek rer reu rib ric rid rie rii rik rir rkb rkc rke rkk rku rrb rrc rrd rri rrk rrr rru rub ruc rud rue rui ruk rur ruu ubb ubc ube ubi ubk ubr ubu ucb ucc ucd uce uci uck ucr ucu udb udc udd ude udi udk udr udu ueb uec ued uee uei uer uib uic uid uie uii uir uiu ukb ukc uke uki ukk ukr uku ur- urb urc urd ure uri urk urr uru uuc uue uur uuu

bbbb bbci bbdd bbeb bbrc bcbc bccc bcci bcde bcec bcer bcie bcru bcuc bd-r bdbc bddc bdii bebb bebe bebi beci beck becu bede bedi bedu beeb beed beek beer beic beik beir beke beki berc berd bere beri berk berr beru beuk beur bibb bibe bibi bicc bice bici bick bide bidi bidr bidu bieb bied bier bieu bike biku birb bird bire biri birk birr biru brcb brce breb brec bred bree brei brek brer bric brid brie brik brkb brrr bruc brud brue bubb bube bubi bubu bucc buce buci buck bucu budb budd bude budi budu buer bueu buic buid buie buik buir buiu buke buki bukk buku bur- burb burd bure buri burk burr buru c-cd cbbc cbcc cbce cbcr cbcu cbdb cbdc cbdi cbec cbee cber cbid cbir cbkr cbrd cbre ccbc cccb cccc ccci cccu ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccrc ccre ccri ccuc cd-e cd-r cddb cddr cdec cder cdic cdii cdre cebu cec- cece ceci cedd cede cedi cedu ceeb ceec ceke cer- cerc cerd cere ceri ceui cibc cibe cibi cicc cici cicr cicu cidc cide cidi cidr ciee cier ciid ciii cikr cirb circ cire ciri cirk cirr ciuc ckbc ckbe ckbi ckck ckdu cker ckrc ckrd crbc crbu crcc crce crcr crdc cre- creb crec cred cree crei creu crib cric crie crik criu crkc crub crud crue cruk cub- cubb cube cubi cucc cuce cuci cuck cude cudi cued cuek cuer cui- cuir cuk- cuke curb curd cure curi curr dbcc dcbc dccb dccc dcci dccu dcdb dcii dcrk dddd ddie ddrc ddre ddub debe debi debu dec- decc decd dece deci deck dedd dede dedi dedu deeb deed deek deer deid deie deir dek- deke der- derb derc dere deri derk derr deue deuk deur dibb dibe dice dici dick dide didi didu dieb died dier dieu diii dike diki diku dird dire dirk dirr dkdc dkid drbc dred dree drei drek drib dric drie drub drue drui druk druu dub- dubb dubc dube dubu duce duck dudd dude dudu duer duid duir duke duki duku dure duri durk duru duur ebbc ebbr ebcc ebed eber ebic ebid ebru ebur ecbc ecbe eccb eccc ecce ecci ecdc eced ecib ecrc ecri ecrr ecru eddc edde eddi ede- edei eder edie edik edru educ edur eede eedu eeee eeke eerc eick eid- eide eidi eidr eidu eiec eied eiei eier eike eiki eird eire ekeb eked ekek eker ekki ekur erbb erbe ercc erce erde erdi ereb erec ered erei erer eric erie erik eriu erke erki errc erre erub eruc erur eubc eubi eucd eude euer eur- eurc eure i-be ibec ibed ibid ibie ibrc ibrd ibri icbc icbd iccb iccc icci iccr iccu icdc icdd icde icec iced icee icer icke icrc icre icrr icru icub icue idbe idce idcr idec ided idee ider idic idid idie idir idku idrc idre idub iecc iedr ieie iere ieri ieud iicd iide iied iiie iiii iirc iiuc ikee iker ikid ikki ikri ikue