#include <fstream>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int n, m, t[100001];
int cauta(int x)
{
    while (t[x] > 0)
        x = t[x];
    return x;
}
int main()
{
    int x, y, cod, i;
    fin >> n >> m;
    for (i = 1; i <= n; i++)
        t[i] = -1;
    for (i = 1; i <= m; i++) {
        fin >> cod >> x >> y;
        x = cauta(x);
        y = cauta(y);
        if (cod == 1) {
            if (-t[x] >= -t[y]) {
                t[x] += t[y];
                t[y] = x;
            }
            else {
                t[y] += t[x];
                t[x] = y;
            }
        }
        else {
            if (x == y)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }
    return 0;
}