digraph G{
    size ="8.5,11";
    14 -> 12 [label="2"];
    14 -> 11 [label="3"];
    14 -> 10 [label="7"];
    14 -> 9 [label="5"];
    7 -> 6 [label="3"];
    7 -> 2 [label="3"];
    7 -> 19 [label="1"];
    7 -> 8 [label="2"];
    4 -> 14 [label="28"];
    4 -> 12 [label="35"];
    4 -> 13 [label="8"];
    4 -> 18 [label="1"];
    4 -> 16 [label="3"];
    4 -> 15 [label="9"];
    17 -> 1 [label="29"];
    17 -> 15 [label="3"];
    17 -> 19 [label="6"];
    17 -> 18 [label="5"];
    17 -> 6 [label="3"];
    6 -> 5 [label="30"];
    6 -> 18 [label="7"];
    6 -> 7 [label="2"];
    6 -> 17 [label="5"];
    6 -> 19 [label="3"];
    12 -> 5 [label="4"];
    12 -> 14 [label="4"];
    12 -> 20 [label="2"];
    12 -> 10 [label="2"];
    18 -> 4 [label="8"];
    18 -> 6 [label="1"];
    18 -> 15 [label="5"];
    18 -> 17 [label="9"];
    3 -> 8 [label="8"];
    3 -> 20 [label="7"];
    3 -> 2 [label="8"];
    3 -> 5 [label="8"];
    2 -> 6 [label="22"];
    2 -> 7 [label="9"];
    2 -> 5 [label="7"];
    2 -> 8 [label="2"];
    2 -> 3 [label="6"];
    19 -> 17 [label="4"];
    19 -> 8 [label="3"];
    19 -> 6 [label="6"];
    19 -> 7 [label="6"];
    13 -> 5 [label="31"];
    13 -> 4 [label="2"];
    13 -> 16 [label="4"];
    8 -> 19 [label="9"];
    8 -> 3 [label="6"];
    8 -> 7 [label="8"];
    8 -> 2 [label="2"];
    1 -> 17 [label="34"];
    1 -> 20 [label="27"];
    1 -> 9 [label="2"];
    1 -> 11 [label="1"];
    16 -> 8 [label="26"];
    16 -> 9 [label="27"];
    16 -> 15 [label="1"];
    16 -> 13 [label="5"];
    16 -> 4 [label="4"];
    11 -> 6 [label="31"];
    11 -> 14 [label="3"];
    11 -> 9 [label="8"];
    11 -> 1 [label="3"];
    20 -> 19 [label="20"];
    20 -> 15 [label="22"];
    20 -> 3 [label="7"];
    20 -> 10 [label="8"];
    20 -> 5 [label="2"];
    20 -> 12 [label="7"];
    5 -> 2 [label="6"];
    5 -> 12 [label="7"];
    5 -> 3 [label="4"];
    5 -> 20 [label="2"];
    15 -> 16 [label="5"];
    15 -> 17 [label="1"];
    15 -> 4 [label="7"];
    15 -> 18 [label="7"];
    10 -> 17 [label="32"];
    10 -> 20 [label="4"];
    10 -> 9 [label="5"];
    10 -> 12 [label="6"];
    10 -> 14 [label="5"];
    9 -> 10 [label="2"];
    9 -> 1 [label="9"];
    9 -> 14 [label="5"];
    9 -> 11 [label="5"];
}