#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");


int v[100002], n, m, k, a, b;

int findx(int x)
{
    if(v[x]<0)
        return x;
    else
        return x=findx(v[x]);
}
void unionx(int a, int b)
{
    int parenta=findx(a);
    int parentb=findx(b);
    if(v[parenta]<v[parentb])
        v[parentb]=parenta;
    else if(v[parenta]>v[parentb])
        v[parenta]=parentb;
    else
{
        v[parentb]=parenta;
        v[parenta]--;
    }
}

int main()
{
    fin>>n>>m;
    for(int i=1; i<=n; i++)
        v[i]=-1;
    for(int i=1; i<=m; i++)
    {
        fin>>k;
        if(k==1)
        {
            fin>>a>>b;
            unionx(a,b);
        }
        else if(k==2)
        {
            fin>>a>>b;
            if(findx(a)==findx(b))
                fout<<"DA\n";
            else
                fout<<"NU\n";
        }
    }

    return 0;
}