a-a a-b a-c aaa aab aac aad aau ab- aba abb abc abd abu ac- aca acb acc acd acu ad- ada adb adc add adu au- aua aub auc aud b-u baa bab bac bad bau bba bbb bbc bbd bbu bca bcb bcc bcd bcu bda bdb bdc bdd bdu bua bub buc bud buu c-- caa cab cac cad cau cba cbb cbc cbd cbu cca ccb ccc ccd ccu cda cdb cdc cdd cdu cua cub cuc cud cuu daa dab dac dad dau dba dbb dbc dbd dbu dca dcb dcc dcd dcu dda ddb ddc ddd ddu dua dub duc dud ua- uaa uab uac uad uau uba ubb ubc ubu uca ucb ucc ucd ucu uda udb udc udd udu uua uuc uuu

aaaa aaab aaac aaad aaba aabb aabc aabd aaca aacb aacc aacd aacu aada aadc aadu abaa abab abac abad abau abb- abba abbb abca abcb abcc abcd abda abdu abua abud acaa acab acac acad acba acca accc accd accu acda acdb acdc acu- adaa adab adac adad adba adbc adcc adda addc addd addu adua adub auaa auca audc baaa baad baba babb babu bac- baca bacc bada badb badd badu bau- baud bbad bbau bbbb bbdd bcaa bcbc bcca bccc bcda bcuc bdbc bddc buad buba bubb bubu buca bucc bucu buda budb budd budu c-cd caaa caab caac caba cabu cac- caca cacc cada cadc cadd cadu cauc cbac cbbc cbca cbcc cbcu cbdb cbdc ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccu ccdc ccuc cdaa cdac cdad cdba cdda cddb cuau cub- cuba cubb cuca cucc cuda daab daad daau daba dabb dabu daca dada dadu daub daud dbcc dcbc dcca dccb dccc dccu dcdb dddd ddub duaa duab duad dub- duba dubb dubc dubu duca duda dudd dudu uabc uaca uaua ubac ubba ubud ucad ucbc ucca ucdc ucdd ucua udaa udad udau udbc udca uuuu

-aaa- -abad aaadc aabaa aabba aacbc aadac abaab ababa ababu abaca abada abbac abbad abbud abccc abcdb abuda acaca acacb acaua accad accub acuba adaba adada aduba aubad audad babau bacab bacca bacu buada bubba bucca budac budca budda buddu c-a-c ca-ca caaba cacau cacu cadac caduc cauac cauca caud- cauda ccccc cuaad cuaba cubub d-a-d daada dabba dabbu dabua dacau dacca dadau dadda dauda dccab ddddd dubau dubba dubuc dudua duduc u-dub uuuuu

aaaaba ababda abacab addada aduadu aucuba baabaa baabda babacu bacaba bacau badaud badbad baucau bauduc bbbbbb buabad bububu budacu bududa cabucu cadaba cadca caduac caduca caudad dababa dabaca dabdab dadaab dadada dubdub uacaba ucuuba

abacua abadaba abdabad bac-cab bau-bau bbbbbbb cauaua dabbaba

abadabad babaabad bbbbbbbb bu-ba-bu dudadudu

abbabubba baabaabaa badabadda dabu-dabu ddddddddd dub-a-dub

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc