a-a a-b a-c aaa aab aac aad aaf ab- aba abb abc abd abf ac- aca acb acc acd acf ad- ada adb adc add adf af- afa afb afc afd aff baa bab bac bad baf bba bbb bbc bbd bbf bca bcb bcc bcd bcf bda bdb bdc bdd bdf bfa bfb bfc bfd bff c-- caa cab cac cad caf cba cbb cbc cbd cbf cca ccb ccc ccd ccf cda cdb cdc cdd cdf cfa cfb cfc cfd cff daa dab dac dad daf dba dbb dbc dbd dbf dca dcb dcc dcd dcf dda ddb ddc ddd ddf dfa dfb dfc dfd dff faa fab fac fad faf fba fbb fbc fbd fbf fca fcb fcc fcd fcf fda fdb fdc fdd fdf ffa ffc ffd fff

aaaa aaab aaac aaad aaaf aaba aabb aabc aabd aaca aacb aacc aacd aacf aada aadc aafa aafb aafc aafd aaff abaa abab abac abad abaf abb- abba abbb abca abcb abcc abcd abcf abda abff acaa acab acac acad acba acca accc accd accf acda acdb acdc acdf acfc acfd adaa adab adac adad adba adbc adcc adda addc addd adfa adfc afaa afad afca afcb afcc afdb afdc affa affc baaa baad baaf baba babb bac- baca bacc bada badb badd bafc baff bbad bbbb bbdd bbfc bcaa bcbc bcca bccc bcda bcfc bdbc bddc bfca c-cd caaa caab caac caaf caba cabf cac- caca cacc cada cadc cadd cafa cafb cafc caff cbac cbbc cbca cbcc cbdb cbdc cbfb cbfc ccaa ccab ccac ccad ccaf ccba ccbc ccca cccb cccc cccf ccdc ccdf ccfa ccfc ccfd ccff cdaa cdac cdad cdba cdbf cdda cddb cdfa cfaa cfab cfac cfbc cfca cfcb cfcf cfda cffb daab daad daba dabb daca dada dafa dafc daff dbcc dbfc dcbc dcca dccb dccc dcdb dcfc dddd dfaf dfcc dffa faaa faac faad faba fabd faca facc fada fadd fafa fafc faff fcab fcba fcca fccf fcda fdca ffcc ffff

-aaa- -abad aaadc aabaa aabba aacbc aadac abaab ababa abaca abada abbac abbad abccc abcdb abfab acaca acacb accad adaba adada bacab bacca baffa c-a-c ca-ca caaba cadac caffa ccccc d-a-d daada dabba dacca dadda dafca dccab ddddd fadda fcaca

aaaaba ababda abacab addada baabaa baabda bacaba badbad bbbbbb cadaba cadca cafcaf dababa dabaca dabdab dadaab dadada fabada

abadaba abdabad ad-dafa bac-cab bbbbbbb dabbaba

abadabad babaabad bbbbbbbb

baabaabaa badabadda ddddddddd

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc