a-be a-ha aaaa aaab aaac aaad aaae aaah aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aada aadc aade aaea aaec aaha abaa abab abac abad abae abb- abba abbb abbe abca abcb abcc abcd abch abda abec abed abee abha acaa acab acac acad acae acba acca accc accd acce acch acda acdb acdc acde ace- acea acec aced aceh acha ache achh adaa adab adac adad adae adah adba adbc adcc adda addc addd adde adea adeb adee adeh adha adhd aeac aecb aede ahab ahac ahad ahah ahed ahha baaa baad baah baba babb babe bac- baca bacc bace bach bada badb badd bade badh baed baha bbad bbbb bbch bbdd bbeb bcaa bcbc bcca bccc bcda bcde bcec bchd bche bdbc bddc bddh bead beah beba bebb bebe beca bech beda bede beeb beed bhca bhcc c-cd caaa caab caac caah caba cabe cac- caca cacc cace cach cada cadc cadd cade caec caha cahe cbac cbbc cbca cbcc cbce cbdb cbdc cbea cbec cbee cbha ccaa ccab ccac ccad ccba ccbc ccca cccb cccc ccdc ccdh cced ccee ccha cche cd-e cdaa cdac cdad cdba cdda cddb cdec ceac cead ceba cec- ceca cece ceda cedd cede ceeb ceec chaa chab chac chad chae chah chca chce chch chea cheb chec ched chee cheh chha daab daad daae daba dabb daca dace dada dade daeb daha dahe dbcc dcbc dcca dccb dccc dcdb dche dddd deac dead deae deba debe dec- deca decc decd dece deda dedd dede deeb deed deha dhaa dhad dhec dhed dhee eaba eabh eaca eacc each eada eadb eadd eaec ebac ebba ebbc ebcc ebed ecaa ecac ecad ecbc ecbe ecca eccb eccc ecce ecdc eced echa eche edac edad edah edca edda eddc edde ede- edea edeh eeca eede eeea eeee ehaa ehcc ehdd ehea eheh haab haad haba habe hace hada hade hadh haec haed haha hbcd hcbc hcca hccb hccc hcch hdca hdda head heah hebb hebe heca hech heda hedd hede heeb heed hehe hhaa hhhh