a-be aaaa aaab aaac aaad aaae aaba aabb aabc aabd aaca aacb aacc aacd aace aada aadc aade aaea aaec aage abaa abab abac abad abae abag abb- abba abbb abbe abca abcb abcc abcd abda abec abed abee abgd acaa acab acac acad acae acag acba acca accc accd acce acda acdb acdc acde ace- acea acec aced acga adaa adab adac adad adae adag adba adbc adcc adda addc addd adde adea adeb adee aeac aecb aede aega agac agad agag agba agca agcc agce agda agde agea aged agee agga agge baaa baad baba babb babe bac- baca bacc bace bada badb badd bade baed baga bage bagg bbad bbbb bbdd bbeb bbga bcaa bcbc bcbg bcca bccc bcda bcde bcec bdbc bddc bead beag beba bebb bebe beca beda bede beeb beed beeg bega begg bgca c-cd caaa caab caac caba cabe cabg cac- caca cacc cace cada cadc cadd cade caec caga cage cagg cbac cbbc cbca cbcc cbce cbdb cbdc cbea cbec cbee cbga cbgb ccaa ccab ccac ccad ccag ccba ccbc ccca cccb cccc ccdc cced ccee ccga ccgc cd-e cdaa cdac cdad cdba cdda cddb cdec ceac cead ceba cec- ceca cece ceda cedd cede ceeb ceec cege cgac cgcc cgcg cged daab daad daae daag daba dabb daca dace dada dade daeb daga dage dagg dbag dbcc dcbc dcca dccb dccc dcdb dddd deac dead deae deba debe dec- deca decc decd dece deda dedd dede deeb deed deeg dega dege dgac dgca dgeg dgge eaba eaca eacc eada eadb eadd eaec eaga eage ebac ebba ebbc ebcc ebed ecaa ecac ecad ecbc ecbe ecca eccb eccc ecce ecdc eced edac edad edag edca edda eddc edde ede- edea edge eeca eede eeea eeee eega egaa egad egae egba egbe egcc egcg egea egec egee eggb egge gaba gabb gabe gace gada gadd gade gaea gaec gaed gaga gage gagg gbag gbde gc-c gcaa gcbc gccc gcda gdca gddb geab gead geba gebe geca gece geda gedd gede geed gege gegg gggg