#include <fstream>
#include <vector>

using namespace std;

vector<int> tata;
int n, m, cod, x, y;

void radacina() {
    while (tata[x] != 0)
        x = tata[x];
    
    while (tata[y] != 0)
        y = tata[y];
}

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

    fin >> n >> m;
    tata.resize(n, 0);

    while (m > 0) {
        fin >> cod >> x >> y;
        radacina();
        if (cod == 1)
            tata[x] = y;
        else
            if (x == y)
                fout << "DA\n";
            else
                fout << "NU\n";
        m--;
    }

    fin.close();
    fout.close();
    return 0;
}