bbbb bbdd bbeb bbrc bbrg bcbc bcbg bccc bcde bcec bcer bd-r bdbc bddc bebb bebe bede beeb beed beeg beer begg berc berd bere berg berr brcb brce breb brec bred bree breg brer brrr c-cd cbbc cbcc cbce cbcr cbdb cbdc cbec cbee cber cbgb cbrd cbre ccbc cccb cccc ccdc ccdr cced ccee ccgc ccrc ccre ccrg cd-e cd-r cddb cddr cdec cder cdre cec- cece cedd cede ceeb ceec cege cer- cerc cerd cere cgcc cgcg cged cger crbc crcc crce crcr crdc cre- creb crec cred cree creg dbcc dcbc dccb dccc dcdb dddd ddrc ddre debe dec- decc decd dece dedd dede deeb deed deeg deer dege der- derb derc dere derg derr dgeg dgge drbc dred dree dreg drge ebbc ebbr ebcc ebed eber ecbc ecbe eccb eccc ecce ecdc eced ecrc ecrr eddc edde ede- eder edge eede eeee eerc eerg egbe egcc egcg egcr egec egee eger eggb egge egre erbb erbe ercc erce erde ereb erec ered erer erg- ergg errc erre gbde gc-c gcbc gccc gcrg gddb gdrc gebe gece gedd gede geed geer gege gegg gerb gerd gere gggg grbr grcc grce grdc greb grec gree greg grrr rbbb rbbr rcbc rccb rccc rcdc rcde rcgc rcrd rcrg rder rebb rebe recc recd rece recr redc redd rede redr reeb reed regd rege regr rerd rere rerg rgbe rred rrrr