#include <fstream>
using namespace std;

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

#define NMAX 100005

int tata[NMAX];
int rang[NMAX];

int radacina(int nod) {
    if (nod == tata[nod]) {
        return nod;
    }
    return tata[nod] = radacina(tata[nod]);
}

void uneste(int x, int y) {
    if (rang[x] < rang[y]) {
        tata[x] = y;
    } else {
        tata[y] = x;
        if (rang[x] == rang[y]) {
            rang[y]++;
        }
    }
}

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

    for (int i = 1; i <= n; ++i) {
        tata[i] = i;
        rang[i] = 1;
    }

    while (m--) {
        int cod, x, y;
        fin >> cod >> x >> y;

        if (cod == 1) {
            uneste(radacina(x), radacina(y));
        } else {
            if (radacina(x) == radacina(y)) {
                fout << "DA\n";
            } else {
                fout << "NU\n";
            }
        }
    }
    return 0;
}