#include <fstream>

using namespace std;

ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int cod = 1;

int find_root(int son)
{
    if(father[son]<=-1)
    {
        return son;
    }
    int root = find_root(father[son]);
    father[son] = root;
    return father[son];
}

void Union(vector<int> &father,int x, int y)
{
    int rx = find_root(x);
    int ry = find_root(y);
    if(rx == ry)
    {
        fout<<"DA"<<'\n';;
        return;
    }

    if(cod==2)
    {
        fout<<"NU"<<'\n';
        return;
    }
    if(father[rx]<father[ry])
    {
        swap(rx,ry);

    }
    father[ry]+=father[rx];  ///mica optimizare ,daca e radacins in ea retinem si numarul de noduri
    father[rx]=y;
}


int main()
{
    int n,m;
    fin>>n>>m;
  vector<int>father(n+1,-1);
    for(int i=1;i<=m;i++)
    {
        int x,y;
        fin>>cod>>x>>y;
        Union(father,x , y);

    }

    return 0;
}