#include <bits/stdc++.h>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

int v[INT_MAX];
int rad(int a)
{
    while (v[a] != 0)
        a = v[a];
    return a;
}

int main()
{
    int n, m;
    int cod, x, y;
    fin >> n >> m;
    for (int i = 0; i < m; i++)
    {
        fin >> cod >> x >> y;
        if (cod == 1)
            v[rad(y)] = rad(x);
        else if (rad(x) == rad(y))
            fout << "DA\n";
        else
            fout << "NU\n";
    }
    return 0;
}