#include <fstream>

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

int root[100001], sz[100001], n, i, m, c, a, b, x, y;

int findRoot(int x)
{
    if (root[x] == x)
        return x;
    else {
        root[x] = findRoot(root[x]);
        return root[x];
    }
}

int main()
{
    cin >> n >> m;
    for (i = 1; i <= n; i++)
    {
        root[i] = i;
        sz[i] = 1;
    }
    for (i = 1; i <= m; i++)
    {
        cin >> c;
        if (c == 1)
        {
            cin >> x >> y;
            if (sz[x] < sz[y])
                swap(x, y);
            sz[x] += sz[y];
            root[y] = root[x];
        }
        if (c == 2)
        {
            cin >> x >> y;
            a = findRoot(x);
            b = findRoot(y);
            if (a != b) cout << "NU\n";
            else cout <<"DA\n";
        }
    }
    return 0;
}