#include <fstream>

using namespace std;

ifstream cin ("disjoint.in");
ofstream cout ("disjoint.out");

int n, m, c, x, y;
int sefi[100001];

int sef (int x)
{
    if (sefi[x] == x)
        return x;
    else
        return sefi[x] = sef(sefi[x]);
}

int main()
{
    cin >> n >> m;
    for (int i = 1; i <= n; i++)
        sefi[i] = i;
    for (int i = 1; i <= m; i++)
    {
        cin >> c >> x >> y;
        if (c == 1)
        {
            sefi[sef(y)] = sef(x);
        }
        else
        {
            if (sef(x) == sef(y))
                cout << "DA" << '\n';
            else
                cout << "NU" << '\n';
        }
    }
    return 0;
}