#include <fstream>
using namespace std;

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

int t[100001];

int root(int x) {return t[x] ? t[x] = root(t[x]) : x;}

int main()
{
    int n, m, cod, x, y;

    fin >> n >> m;
    while (m--)
    {
        fin >> cod >> x >> y;
        if (cod == 1) t[root(x)] = root(y);
        else
        {
            if (root(x) == root(y)) fout << "DA\n";
            else fout << "NU\n";
        }
    }
}