digraph P {
size="8,5"
node [shape=box];
0 -> 1 [ label="0.5" ];
0 -> 2 [ label="0.5" ];
1 -> 3 [ label="0.5" ];
1 -> 4 [ label="0.5" ];
2 -> 5 [ label="0.5" ];
2 -> 6 [ label="0.5" ];
3 -> 1 [ label="0.5" ];
3 -> 7 [ label="0.5" ];
4 -> 8 [ label="0.5" ];
4 -> 9 [ label="0.5" ];
5 -> 10 [ label="0.5" ];
5 -> 11 [ label="0.5" ];
6 -> 2 [ label="0.5" ];
6 -> 12 [ label="0.5" ];
7 -> 7 [ label="1" ];
8 -> 8 [ label="1" ];
9 -> 9 [ label="1" ];
10 -> 10 [ label="1" ];
11 -> 11 [ label="1" ];
12 -> 12 [ label="1" ];
0 [label="0\n(0,0)"];
1 [label="1\n(1,0)"];
2 [label="2\n(2,0)"];
3 [label="3\n(3,0)"];
4 [label="4\n(4,0)"];
5 [label="5\n(5,0)"];
6 [label="6\n(6,0)"];
7 [label="7\n(7,1)"];
8 [label="8\n(7,2)"];
9 [label="9\n(7,3)"];
10 [label="10\n(7,4)"];
11 [label="11\n(7,5)"];
12 [label="12\n(7,6)"];
}