-al a-a a-b a-c aaa aab aac aal ab- aba abb abc abl ac- aca acb acc acl al- ala alb alc all baa bab bac bal bba bbb bbc bbl bca bcb bcc bcl bla blb blc bll c-- caa cab cac cal cba cbb cbc cbl cca ccb ccc ccl cl- cla clb clc cll la- laa lab lac lal lba lbb lbc lbl lca lcb lcc lcl lla llb llc lll

aaaa aaab aaac aaal aaba aabb aabc aabl aaca aacb aacc aacl aala aalc aall abaa abab abac abal abb- abba abbb abca abcb abcc abcl abla acaa acab acac acba acbl acca accc acla aclc alaa alac alal alb- alba albc alca alcc all- alla alll baaa baal baba babb bac- baca bacc bala balc ball bbbb bblb bcaa bcbc bcca bccc bccl blaa blab blac caaa caab caac caal caba cac- caca cacc cala calc call cbac cbal cbbc cbca cbcc cbcl cblb cblc ccaa ccab ccac ccba ccbc ccca cccb cccc cccl ccla cclc clab laaa laac laal laba laca lacc lacl lala lall lbcc lcac lcbc lcca lccc llcc lllc llll

-aaa- aabaa aabba aacbc abaab ababa abaca abala aball abbac abccc acaca acacb acala acall aclla alaba alaca alala albac albal allal baalc bacab bacca balac balal balca balla bball blaca blacc c-a-c ca-ca caaba cabal calc- calca calla callb ccccc clacl la-la labab labba lacca lalab lalla lball

aaaaba aaalac aaccla abacab abbala al-ala al-bab albala alcala b-ball baabaa babala bacaba bacal bacall balaca ballal bbbbbb caala cabala caball calaba calaca calla- callac laalaa lablab lalala

allball bac-cab bacabal bal-bal balbala bbbbbbb caballa cabbala lab-lab

balabala bbbbbbbb blaablaa callacab

baabaabaa blaa-blaa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc