a-a a-b a-c aaa aab aac aad aan ab- aba abb abc abd abn ac- aca acb acc acd acn ad- ada adb adc add adn an- ana anb anc and ann baa bab bac bad ban bba bbb bbc bbd bbn bca bcb bcc bcd bcn bda bdb bdc bdd bna bnb bnc bnd bnn c-- caa cab cac cad can cba cbb cbc cbd cbn cca ccb ccc ccd ccn cda cdb cdc cdd cdn cn- cna cnb cnc cnd cnn daa dab dac dad dan dba dbb dbc dbd dbn dca dcb dcc dcd dcn dda ddb ddc ddd ddn dna dnb dnc dnd dnn naa nab nac nad nan nba nbb nbc nbd nbn nca ncb ncc ncd ncn nda ndb ndc ndd ndn nna nnb nnc nnn

-ana aaaa aaab aaac aaad aaan aaba aabb aabc aabd aaca aacb aacc aacd aacn aada aadc aana aand abaa abab abac abad aban abb- abba abbb abca abcb abcc abcd abcn abda acaa acab acac acad acan acba acca accc accd acda acdb acdc adaa adab adac adad adan adba adbc adcc adda addc addd addn adna ana- anaa anab anac anad anan anba anbb anca ancc and- anda anna annb baaa baad baan baba babb bac- baca bacc bacn bada badb badd bana banc band bann bbad bbbb bbdd bcaa bcbc bcca bccc bcda bdbc bddc bdna c-cd caaa caab caac caan caba cac- caca cacc cada cadc cadd cana canc cand cann cbac cbbc cbca cbcc cbcn cbdb cbdc cbdn cbna cbnd ccaa ccab ccac ccad ccba ccbc ccbn ccca cccb cccc ccdc ccdn ccna ccnb ccnc cdaa cdac cdad cdba cdda cddb cdna cdnb cdnc cnaa cnac cnbc cnda cndd cnna d-na daab daad daan daba dabb daca dada dana dand dann dbcc dcbc dcca dccb dccc dcdb dddd dnaa dnab dnac dnad dnan naaa naab naac naad naan naba nabc naca nacc nacd nada nadc nan- nana nanb nand nann nbaa nbad nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn ncda ncdc ncdn ncna ncnc ncnd ndaa ndcc nddb ndna nndb nnnn

-aaa- -abad a-dna aaadc aabaa aabba aacbc aadac abaab ababa abaca abada abana abanc aband abann abbac abbad abban abcan abccc abcdb abdan acaca acacb acana accad adaba adada adana adanc adnan anaba anana anand anban andab andac andad andan annan b-dna baban bacab bacca badan badna banan banba banca banda bandb bandn banna c-a-c c-dna ca-ca caaan caaba caban cadac canan canda canna ccand ccccc cdand cnnnn d-a-d daada daana daban dabba dacca dadda dadna danan danda dandd danna dccab ddddd naban nabba nacaa nacac nacba naccc nacda nacna nadab nadan nanan nanda nann- nanna ndana

aaaaba abaana ababda abacab abadan abanca abanda abbana acanda adanac addada anaana anabaa anabad anacda anadan ananab ananda andada annaba annada annand baabaa baabda babana bacaba badbad banaba banana bandan bannan bbbbbb c-anca cabaan cabana cabban cadaba cadca canaa canaan canaba canada cancan candan cannan cccdna dababa dabaca dabdab dadaab dadada dadnab danaan danaba danand danann dandan nacnac nadaan nadana nanana nanban nandan nannan ndanda

abadaba abaddan abdabad abdanan adand an-naba anandan andabad b-and-b bac-cab bacanda banabad bancabc bandana bannana bbbbbbb cabanac can-can cannada dabbaba dandaca nabanna nan-nan nandana

abadabad anandana andanada baadbaan babaabad badnaban bandanna bbbbbbbb nadadada nanaddan nananana

baabaabaa babanabad badabadda canadacan ddddddddd

na-nana-na

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc