public class node {
    int id;
    int weigh;
    int value;
    public node()
    {
        id=weigh=value=0;
    }
    public node(int id_,int weigh_,int value_) {
        id=id_;
        weigh=weigh_;
        value=value_;
    }

    void setId(int id_)
    {
        id=id_;
    }

    void setValue( int value_)
    {
        value=value_;
    }

    void setWeigh( int weigh_)
    {
        weigh=weigh_;
    }
}