a-a a-c aaa aac aae aaf ac- aca acc ace acf aea aec aee aef af- afa afc afe aff c-- caa cac cae caf cca ccc cce ccf ce- cea cec cee cef cfa cfc cfe cff eaa eac eae eaf ec- eca ecc ece ecf eea eec eee eef ef- efa efc efe eff faa fac fae faf fca fcc fce fcf fea fec fee fef ffa ffc ffe fff

aaaa aaac aaae aaaf aaca aacc aace aacf aaea aaec aafa aafc aaff acaa acac acae acca accc acce accf ace- acea acec acfc aeac aeaf afaa afca afcc afee affa affc caaa caac caaf cac- caca cacc cace caec cafa cafc cafe caff ccaa ccac ccaf ccca cccc cccf ccee ccfa ccfc ccff ceac cec- ceca cece ceec cef- cefa cefc cfaa cfac cfae cfca cfcf eaaf eaca eacc eaec ecaa ecac ecca eccc ecce ecef ecfa ecfc eeca eeea eeee eefa eefe efca effa faaa faac faca facc face fafa fafc fafe faff fcca fccf feaf fece fefc fefe feff ffcc ffee ffff

-aaa- aaace aaaee aaeaf acaca aceae aeaea aface afcea afcec afefe c-a-c ca-ca caec- caeca caffa caffe ccccc ceace ceeac eecca eeeee facea fcaca fface

aeacea afeefa cafcaf cecafa ceecee efacec efface

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aaaaaaaaaaaaaaa ccccccccccccccc