#include <fstream>

using namespace std;

ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

const int NMAX = 100000;
int v[NMAX + 5], siz[NMAX + 5];

int Find(int x)
{
    if(v[x] == x)
        return x;

    v[x] = Find(v[v[x]]);
    return v[x];
}

void Unite(int x, int y)
{
    y = Find(y);
    x = Find(x);
    if(siz[x] > siz[y])
        v[x] = y;
    else if (siz[y] > siz[x])
        v[y] = x;
    else
    {
        v[x] = y;
        siz[x]++;
    }
}


int main()
{
    int n, m;
    fin >> n >> m;

    for(int i = 1; i <= n; i++)
    {
        v[i] = i;
        siz[i] = 1;
    }

    for(int i = 0; i < m; i++)
    {
        int t, x, y;
        fin >> t >> x >> y;
        if(t == 1)
        {
            Unite(x, y);
        }
        else
        {
            if(Find(x) == Find(y))
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }

    return 0;
}