a-ha aaaa aaac aaad aaae aaaf aaah aaca aacc aacd aace aacf aach aada aadc aade aaea aaec aafa aafc aafd aaff aaha acaa acac acad acae acca accc accd acce accf acch acda acdc acde acdf ace- acea acec aced aceh acfc acfd acfe acha ache achh adaa adac adad adae adah adcc adda addc addd adde adea adee adeh adfa adfc adha adhd aeac aeaf aede afaa afad afca afcc afch afdc afee affa affc ahac ahad ahah ahed ahfa ahha c-cd caaa caac caaf caah cac- caca cacc cace cach cada cadc cadd cade caec cafa cafc cafe caff caha cahe ccaa ccac ccad ccaf ccca cccc cccf ccdc ccdf ccdh cced ccee ccfa ccfc ccfd ccff ccha cche cd-e cdaa cdac cdad cdda cdec cdef cdfa cdfe ceac cead cec- ceca cece ceda cedd cede ceec cef- cefa cefc cfaa cfac cfae cfca cfcf cfda chaa chac chad chae chaf chah chca chce chch chea chec ched chee chef cheh chfa chfc chha daad daae daca dace dada dade dafa dafc dafe daff daha dahe dcca dccc dcfc dche dddd deac dead deae deaf dec- deca decc decd dece deda dedd dede deed deef defe deff deha dfaf dfcc dffa dhaa dhad dhec dhed dhee dhfc eaaf eaca eacc each eada eadd eaec ecaa ecac ecad ecca eccc ecce ecdc ecdf eced ecef ecfa ecfc echa eche edac edad edah edca edda eddc edde ede- edea edeh edfa eeca eede eeea eeee eefa eefe efca efda effa ehaa ehcc ehdd ehea eheh faaa faac faad faah faca facc face fach fada fadd fade fafa fafc fafe faff faha fahd fcca fccf fcch fcda fdca fead feaf fece fech feda fede feed fefc fefe feff fehd ffcc ffee ffff haad haaf hace hada hade hadf hadh haec haed hafd hafe haff haha hcca hccc hcch hcfa hcfc hdca hdda hdfc head heaf heah heca hech heda hedd hede heed heef hefd hefe hehe hfce hhaa hhhh