bbbb bbdd bbdo bbeb bcbc bccc bcde bcec bdbc bddc bebb bebe bebo bede bedo beeb beed beo- beod bobb bobe bobo boce boco bodb bode bodo boec boee boeo boob booc bood booe c-bo c-cd cbbc cbcc cbce cbdb cbdc cbdo cbec cbee ccbc cccb cccc ccdc cced ccee ccob ccoc ccod cd-e cddb cdec cec- cece ceco cedd cede cedo ceeb ceec cobb cobe cobo coce coco codd code coed coob cood d-bo dbcc dcbc dccb dccc dcdb dddd ddoc debe dec- decc decd dece deco dedd dede dedo deeb deed dobb dobe doce doco dod- dodd dode dodo doob dood ebbc ebbo ebcc ebed eboe eboo ecbc ecbe eccb eccc ecce ecco ecdc eced eco- ecod eddc edde eddo ede- edoc edod eede eeee eeoc eocd eode o-eo obbo obec obed oboe ocbc occc oce oced ocee odbo oddd oded odeo odoo oec- oecc oedo oeec oobe oooo