#include <fstream>

using namespace std;

unsigned int father (unsigned int x);

unsigned int N, M;
unsigned short int cod;
unsigned int x, y;

unsigned int f[100001];
unsigned int x1, y1;
unsigned int i;

int main ()
{
    ifstream fin ("disjoint.in");
    ofstream fout ("disjoint.out");
    fin >> N >> M;
    for (i=1; i<=N; i++)
        f[i] = i;
    for (i=1; i<=M; i++)
    {
        fin >> cod >> x >> y;
        x1 = father(x);
        y1 = father(y);
        if (cod == 1)
            f[y1] = x1;
        else
        {
            if (x1 == y1)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }
    fin.close();
    fout.close();
    return 0;
}

unsigned int father (unsigned int x)
{
    if (x == f[x])
        return x;
    else
        return father(f[x]);
}