-er -ic b-u bbb bbc bbd bbe bbf bbi bbr bbu bcb bcc bcd bce bcf bci bcr bcu bdb bdc bdd bde bdf bdi bdr bdu be- beb bec bed bee bef bei ber beu bfb bfc bfd bfe bff bfi bfr bfu bi- bib bic bid bie bif bii bir biu brb brd bre brf bri brr bru bub buc bud bue buf bui bur buu c-- cbb cbc cbd cbe cbf cbi cbr cbu ccb ccc ccd cce ccf cci ccr ccu cdb cdc cdd cde cdf cdi cdr cdu ce- ceb cec ced cee cef cei cer ceu cfb cfc cfd cfe cff cfi cfr cfu ci- cib cic cid cie cif cii cir ciu crb crc crd cre crf cri crr cru cub cuc cud cue cuf cui cur cuu dbb dbc dbd dbe dbf dbi dbr dbu dcb dcc dcd dce dcf dci dcr dcu ddb ddc ddd dde ddf ddi ddr ddu de- deb dec ded dee def dei der deu dfb dfc dfd dfe dff dfi dfr dfu di- dib dic did die dif dii dir diu drb drc drd dre dri drr dru dub duc dud due duf dui dur ebb ebc ebd ebe ebf ebi ebr ebu ec- ecb ecc ecd ece ecf eci ecr ecu ed- edb edc edd ede edf edi edr edu eeb eec eed eee eef eer ef- efb efc efd efe eff efi efr eib eic eid eie eif eii eir eiu erb erc erd ere erf eri err eru eu- eub euc eud eue euf eui eur fbb fbc fbd fbe fbf fbi fbr fbu fcb fcc fcd fce fcf fci fcr fcu fdb fdc fdd fde fdf fdi fdr fdu feb fec fed fee fef fei fer feu ffc ffd ffe fff ffi ffr ffu fib fic fid fie fif fii fir fiu frb frc frd fre frf fri frr fru fub fud fue fuf fui fur fuu i-d i-f ibb ibc ibd ibe ibf ibi ibr ibu icb icc icd ice icf ici icr icu idb idc idd ide idf idi idr idu ie- iec ied iee ief iei ier ifb ifc ifd ife iff ifi ifr ifu iib iic iid iie iif iii iir iiu ir- irb irc ird ire irf iri irr iru iu- iub iuc iud iue iui iur rbb rbc rbd rbe rbf rbi rbr rbu rcb rcc rcd rce rcf rci rcr rcu rdb rdc rdd rde rdf rdi rdr rdu re- reb rec red ree ref rei rer reu rfb rfc rfd rfe rff rfi rfr rfu rib ric rid rie rif rii rir rrb rrc rrd rrf rri rrr rru rub ruc rud rue ruf rui rur ruu ubb ubc ube ubf ubi ubr ubu ucb ucc ucd uce ucf uci ucr ucu udb udc udd ude udf udi udr udu ueb uec ued uee uef uei uer ufc ufd ufe uff ufi ufr ufu uib uic uid uie uif uii uir uiu ur- urb urc urd ure urf uri urr uru uuc uue uur uuu

bbbb bbci bbdd bbeb bbfc bbrc bcbc bccc bcci bcde bcec bcer bcfc bcie bcru bcuc bd-r bdbc bddc bdii bduf bebb bebe bebi beci becu bede bedi bedu beeb beed beef beer befe beff beic beir berc berd bere beri berr beru beur bibb bibe bibi bicc bice bici bide bidi bidr bidu bieb bied bief bier bieu biff bifi birb bird bire biri birr biru brcb brce breb brec bred bree bref brei brer brfc brfu bric brid brie brrr bruc brud brue bubb bube bubi bubu bucc buce buci bucu budb budd bude budi budu buer bueu bufc bufe buff bufr buic buid buie buif buir buiu bur- burb burd bure buri burr buru c-cd cbbc cbcc cbce cbcr cbcu cbdb cbdc cbdi cbec cbee cbef cber cbfb cbfc cbid cbir cbrd cbre ccbc cccb cccc cccf ccci cccu ccdc ccdf ccdi ccdr cced ccee ccfc ccfd ccff ccfi ccic ccid ccii ccir ccrc ccre ccrf ccri ccuc cd-e cd-r cdbf cddb cddr cdec cdef cder cdfe cdic cdii cdre cebu cec- cece ceci cedd cede cedi cedu ceeb ceec cef- cefc cer- cerc cerd cere cerf ceri ceui cfbc cfbr cfcb cfcf cffb cffr cfrb cfre cibc cibe cibi cicc cici cicr cicu cidc cide cidi cidr ciee cier cife ciff ciid ciii cirb circ cire ciri cirr ciuc crbc crbu crcc crce crcr crdc cre- creb crec cred cree crei creu crfc crib cric crie crif criu crub crud crue cub- cubb cube cubi cucc cuce cuci cude cudi cued cuer cufc cuff cufi cui- cuif cuir curb curd cure curf curi curr dbcc dbfc dcbc dccb dccc dcci dccu dcdb dcfc dcii dddd ddie ddrc ddre ddub debe debi debu dec- decc decd dece deci dedd dede dedi dedu deeb deed deef deer defe deff defi deid deie deif deir der- derb derc dere derf deri derr deue deur dfcc dfcu dfer dfrf dfri dibb dibe dice dici dide didi didu dieb died dief dier dieu dif- diff diii dird dire dirr drbc dred dree dref drei drfc drib dric drie drif drub drue drui druu dub- dubb dubc dube dubu duce dudd dude dudu duer dufc duff dufu duid duif duir dure duri duru duur ebbc ebbr ebcc ebed eber ebfc ebic ebid ebru ebur ecbc ecbe eccb eccc ecce ecci ecdc ecdf eced ecef ecfc ecfr ecib ecrc ecrf ecri ecrr ecru eddc edde eddi ede- edei eder edfu edie edif edru educ edur eede eedu eeee eefe eerc efbr effi efic eid- eide eidi eidr eidu eiec eied eiei eier eird eire erbb erbe ercc erce erde erdf erdi ereb erec ered erei erer erfc eric erie eriu errc erre erub eruc erur eubc eubi eucd eude euer eufc eufi eur- eurc eure fccf fcic fcii fdic fece fede fedi feeb feed feer fefc fefe feff fefi feid feie feir ferb ferc ferd fere ferr feru feud ffcc ffee ffff