#include <bits/stdc++.h>
#define Nmax 100005

using namespace std;

int t[Nmax], n;

ifstream f("disjoint.in");
ofstream g("disjoint.out");

void Union(int x, int y)
{
    t[y] = x;
}

int Find(int x)
{
    int rad, aux;
    rad = x;
    while(t[rad] != 0)
        rad = t[rad];
    while(x != rad)
    {
        aux = t[x];
        t[x] = rad;
        x = aux;
    }
    return rad;
}

void Rezolv()
{
    int x, y, m, op;
    f >> n >> m;
    for(int i = 1; i <= m; i++)
    {
        f >> op >> x >> y;
        x = Find(x);
        y = Find(y);
        if(op == 1)
        {
            if(x != y) Union(x, y);
        }
        else
        {
            if(x == y) g << "DA\n";
            else g << "NU\n";
        }
    }
    f.close();
    g.close();
}

int main()
{
    Rezolv();
    return 0;
}