#include <bits/stdc++.h>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int main()
{
    int n,m,a,b,c;
    vector<vector<int>> list;
    vector<int> tata;
    fin>>n>>m;
    for(int i=0;i<=n;i++)
    {
        tata.push_back(i);
        list.push_back({});
    }
    for(int x=1;x<=m;x++)
    {
        fin>>a>>b>>c;
        if(a == 1)
        {
            tata[c] = tata[b];
            list[b].push_back(c);
            for(int i:list[c])
            {
                tata[i] = tata[b];
                list[b].push_back(i);
            }
            list[c].clear();
        }
        else
        {
            if(tata[b] == tata[c])
                fout<<"DA\n";
            else
                fout<<"NU\n";
        }

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