11 26 0 1 0 8 0 7 1 2 1 9 1 8 2 3 2 10 2 9 2 8 3 4 3 10 3 9 4 10 4 5 5 10 5 9 5 6 6 10 6 9 6 8 6 7 7 9 7 8 8 9 9 10 // // 11 vertices and 26 edges // Vertices to be labelled uniquely with integers in the range 0 to 10 // Adjacent vertices to be labelled non-consecutively // This is "Crystal Maze" extended by 3 vertices. //