bbbb bbci bbdd bbeb bcbc bccc bcci bcde bcec bcie bdbc bddc bdii bebb bebe bebi beci bede bedi beeb beed beic bibb bibe bibi bicc bice bici bide bidi bieb bied c-cd cbbc cbcc cbce cbdb cbdc cbdi cbec cbee cbid ccbc cccb cccc ccci ccdc ccdi cced ccee ccic ccid ccii cd-e cddb cdec cdic cdii cec- cece ceci cedd cede cedi ceeb ceec cibc cibe cibi cicc cici cidc cide cidi ciee ciid ciii dbcc dcbc dccb dccc dcci dcdb dcii dddd ddie debe debi dec- decc decd dece deci dedd dede dedi deeb deed deid deie dibb dibe dice dici dide didi dieb died diii ebbc ebcc ebed ebic ebid ecbc ecbe eccb eccc ecce ecci ecdc eced ecib eddc edde eddi ede- edei edie eede eeee eid- eide eidi eiec eied eiei i-be ibec ibed ibid ibie icbc icbd iccb iccc icci icdc icdd icde icec iced icee idbe idce idec ided idee idic idid idie iecc ieie iicd iide iied iiie iiii