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+Use a turtle to draw vertex built by a Lindenmayer system, construct a penrose tiling with it, convert it to a TSP problem.
+
+Draw a P3 penrose tiling at depth 2 and output its corresponding TSPLIB file :
+python lindenmayer.py 2 > penrose3_2.tsp
+
+Read a TSPLIB file and its optimal tour and draw them:
+python tsplib.py penrose3_1.tsp penrose3_2.opt.tour
+