digraph hal1 {
    node [fontcolor=white,style=filled,color="160,60,176"];
    1 [label = mul];
    2 [label = mul];
    3 [label = mul];
    4 [label = sub];
    5 [label = sub];
    6 [label = mul];
    7 [label = mul];
    8 [label = mul];
    9 [label = add];
    10 [label = add];
    11 [label = les];
    1 -> 3 [name=16];
    2 -> 3 [name=14];
    3 -> 4 [name=20];
    4 -> 5 [name=24];
    6 -> 7 [name=17];
    7 -> 5 [name=22];
    8 -> 9 [name=15];
    10 -> 11 [name=18];
}