#include <fstream>
#include <vector>

using namespace std;

ifstream be("disjoint.in");
ofstream ki("disjoint.out");

int find(int x, vector<int> &parent)
{
    if(parent[x] != x)
    {
        parent[x] = find(parent[x], parent);
    }

    return parent[x];
}

void merge(int x, int y, vector<int> &parent, vector<int> &rank)
{
    x = find(x, parent);
    y = find(y, parent);

    if(x == y) return;

    if(rank[x] < rank[y]) swap(x, y);

    parent[y] = x;

    if(rank[x] == rank[y]) rank[x]++;
}

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

    vector<int> parent(n + 1);
    vector<int> rank(n + 1);

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

    for(int i = 0; i < m; i++)
    {
        int t, x, y;
        be >> t >> x >> y;

        if(t == 1)
        {
            merge(x, y, parent, rank);
        }else
        {
            if(find(x, parent) == find(y, parent)) ki << "DA" << "\n";
            else ki << "NU" << "\n";
        }
    }

    return 0;
}