title String Compare description Accepts all inputs consisting of two identical strings of a's and b's, separated by a dollar sign. vertices 1 R 0.5 0.5 2 R 0.3 0.15 3 R 0.3 0.85 4 R 0.1 0.15 5 R 0.1 0.85 6 L 0.3 0.5 7 R 0.7 0.5 8 Y 0.9 0.7 9 N 0.1 0.5 10 N 0.9 0.3 edges 2 4 $ $ 3 5 $ $ 4 6 a X 4 9 b b -0.3 4 9 # # 0.3 5 6 b X 5 9 a a 0.3 5 9 # # -0.3 6 1 # # 1 2 a X 1 3 b X 1 7 $ $ 7 8 # # 7 10 a a 0.3 7 10 b b -0.3 tapes [b] b b a $ b b b a [b] b a $ b b b [b] b a b $ b b a b a b [b] b a b a $ b b a b [$]