notes/school/di-ma/20181114_4-bsb.dot

graph g {
    node [ shape="circle" ];
    10 -- -10;
    10 -- 100;
    -10 -- -20;
    -10 -- -3;
    -20 -- -25;
    -3 -- -4;
    -3 -- -2;

    100 -- 20;
    100 -- 300;
    300 -- 200;
    300 -- 301;
}