#include <iostream>
#include <fstream>

#define N 100001
#define M 100001
using namespace std;

int parent[N];
int rang[N];


void comp_roads(int nod, int root)
{
    while(parent[nod] != -1)
    {
        parent[nod] = root;
        nod = parent[nod];
    }
}

int get_root(int nod)
{
    int par = parent[nod];
    if(par == -1)
        return nod;

    while(parent[par] != -1)
    {
        par = parent[par];
    }

    comp_roads(nod, par);
    return par;
}



int main()
{
    int n,m;
    ifstream fin("disjoint.in");
    ofstream fout("disjoint.out");

    fin >> n >> m;

    for(int i = 1; i <= n; i++)
    {
        parent[i] = -1;
        rang[i] = 1;
    }

    while(m)
    {
        int x, y, op;
        fin >> op >> x >> y;
        int root1, root2;
        if(op == 1)
        {
            root1 = get_root(x);
            root2 = get_root(y);
            if(rang[root1] >= rang[root2])
            {
                parent[root2] = root1;
            }
            else
            {
                parent[root1] = root2;
            }

            if(rang[x] == rang[y])
                rang[x] ++;
        }
        else
        {
            if(get_root(x) == get_root(y))
                fout << "DA" << endl;
            else
                fout << "NU" << endl;
        }
        m--;
    }

    return 0;
}