bbbb bbch bbci bbdd bbeb bbrc bcbc bccc bcci bcde bcec bcer bchd bche bcie bd-r bdbc bddc bddh bdii bebb bebe bebi bech beci bede bedi beeb beed beer behr beic beir berc berd bere beri berr bhcc bher bhie bhir bibb bibe bibi bicc bice bich bici bide bidi bidr bieb bied bier bihe bihi birb bird bire biri birr brcb brce breb brec bred bree brei brer bric brid brie brih brrr c-cd cbbc cbcc cbce cbcr cbdb cbdc cbdi cbec cbee cber cbid cbir cbrd cbre cbrh ccbc cccb cccc ccci ccdc ccdh ccdi ccdr cced ccee cche cchr ccic ccid ccii ccir ccrc ccre ccri cd-e cd-r cddb cddr cdec cder cdic cdii cdre cec- cece ceci cedd cede cedi ceeb ceec cer- cerc cerd cere ceri chce chch chci chdi cheb chec ched chee cheh cher chib chic chid chie chih chir chrb chrc chrd chrr cibc cibe cibi cicc cich cici cicr cidc cide cidi cidr ciee cier cihr ciid ciii cirb circ cire cirh ciri cirr crbc crcc crce crcr crdc cre- creb crec cred cree creh crei crib cric crie dbcc dcbc dccb dccc dcci dcdb dche dcii dddd ddie ddrc ddre debe debi dec- decc decd dece deci dedd dede dedi deeb deed deer dehi deid deie deih deir der- derb derc dere deri derr dhec dhed dhee dher dibb dibe dice dich dici dide didi dieb died dier diii dird dire dirr drbc dred dree dreh drei drib dric drie drih ebbc ebbr ebcc ebed eber ebic ebid ecbc ecbe eccb eccc ecce ecci ecdc eced eche ecib ecrc ecri ecrr eddc edde eddi ede- edeh edei eder edhi edie eede eeee eerc ehcc ehdd eheh eher ehre eich eid- eide eidi eidr eiec eied eiei eier eird eire erbb erbe ercc erce erch erde erdi ereb erec ered erei erer erhc eric erie erih errc erre h-ii hbcd hbic hcbc hccb hccc hcch hcdr hchi hcrd hdci hdri hebb hebe hebi hebr hech hedd hede hedi heeb heed heer hehe heic heid heie heih heir herb herc herd here heri herr hhhh hi-c hibi hicc hice hich hide hidi hied hiei hier hihc hihe hihi hiie hird hire hiri hrdc hree hrib hrid hrrc i-be ibec ibed ibeh ibid ibie ibrc ibrd ibri icbc icbd iccb iccc icci iccr icdc icdd icde icec iced icee icer ichc ichd iche ichi ichr icrc icre icrr idbe idce idcr idec ided idee ider idic idid idie idir idrc idre iecc iedr ieie iere ieri ihcc ihdr ihed iher ihrc ihrd ihre iicd iide iied iiie iiii iirc irbe ircc ircd irdc ired iree irer iri- iric irid irie irrc irre irri rbbb rbbr rcbc rccb rccc rcdc rcde rchb rcic rcid rcrd rder rebb rebe recc recd rece rech reci recr redc redd rede redh redi redr reeb reed rehb rehe rehi reid reii reir rerd rere reri rhce rheb rhee rhib rib- ribe ricc rice rich ridc ridd ride ridi ried rier rire riri rred rrrr