bbbb bbci bbdd bbeb bcbc bcbg bccc bcci bcde bcec bcie bcuc bdbc bddc bdii bebb bebe bebi beci becu bede bedi bedu beeb beed beeg begg begi begu beic bibb bibe bibi bicc bice bicg bici bide bidi bidu bieb bied bieu bigb bigc bigd bige bigg bigu bubb bube bubi bubu bucc buce buci bucu budb budd bude budg budi budu bueu buge bugg bugi buic buid buie buiu c-cd cbbc cbcc cbce cbcu cbdb cbdc cbdi cbec cbee cbgb cbid ccbc cccb cccc ccci cccu ccdc ccdi cced ccee ccgc ccic ccid ccii ccuc cd-e cddb cdec cdic cdii cebu cec- cece ceci cedd cede cedi cedu ceeb ceec cege ceui cgcc cgcg cged cibc cibe cibi cicc cici cicu cidc cide cidg cidi ciee cigi cigu ciid ciii ciuc cub- cubb cube cubi cucc cuce cuci cude cudi cued cui- dbcc dcbc dccb dccc dcci dccu dcdb dcii dddd ddie ddub debe debi debu dec- decc decd dece deci dedd dede dedi dedu deeb deed deeg dege degi degu deid deie deue dgeg dgge dibb dibe dice dici dide didi didu dieb died dieu dige digg digi diii dub- dubb dubc dube dubu duce dudd dude dudu dugu duid ebbc ebcc ebed ebic ebid ecbc ecbe eccb eccc ecce ecci ecdc eced ecib ecig eddc edde eddi ede- edei edge edie educ eede eedu eeee egbe egbu egcc egcg egec egee eggb egge eggi eid- eide eidi eidu eiec eied eiei eige eigg eubc eubi eucd eude euge gbde gc-c gcbc gccc gcic gcii gdci gddb gebe gebi gece gedd gede gedi gedu geed gege gegg geic geie geig geue gggg gibb gibe gidc gidd gide gidi gied gige gigg gigi giue gubb gubi gubu guci gude gudi gudu gugb guge gugg gugi gugu guib guid i-be ibec ibed ibeg ibge ibid ibie icbc icbd iccb iccc icci iccu icdc icdd icde icec iced icee icgc icub icue idbe idce idec ided idee idic idid idie idig idub iecc ieie ieud igbc igcc igue iicd iide iied iiie iiii iiuc iucc iuce iuge iuiu u-ie ubbe ubbi ubic ubid ubii ubud ucbc ucci ucdc ucdd udbc uddi udgb udge udic udid udig ugcc ugcg uguu uige uuuu