title
Copy a string of a's and b's

description
Copy a tape of a's and b's, putting copy to the right
of the tape containing the original sequence of a's and b's

vertices
1 L 0.30 0.5
0 L 0.10 0.5
2 R 0.50 0.5
3 R 0.50 0.2
4 R 0.10 0.2
5 R 0.50 0.8
6 R 0.10 0.8
7 L 0.70 0.5
8 H 0.90 0.5


edges
0 1 # #
1 2 # #
2 3 a A
3 4 # #
4 0 # a
2 5 b B
5 6 # #
6 0 # b
2 7 # #
7 7 A a 90
7 7 B b -90
7 8 # #

tapes
[a] b b b a a 
[b] a b a a b
[a] a b b a a b
[b] a a a b