#include <iostream>
#include <fstream>

using namespace std;

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

int t[100001],h[100001];

int radacina(int x)
{
    if(t[x]==0)
        return x;
    return radacina(t[x]);
}

void reuniune(int x, int y)
{
    int rx,ry;
    rx=radacina(x);
    ry=radacina(y);
    if(h[rx]<h[ry])
        t[rx]=ry;
    else if(h[rx]>h[ry])
            t[ry]=rx;
         else{
            t[rx]=ry;
            h[ry]++;
         }
}

bool verificare(int x, int y)
{
    return (radacina(x)==radacina(y));
}

int main()
{
    int n,m;
    in>>n>>m;
    for(int i=1;i<=m;i++){
        int cod,a,b;
        in>>cod>>a>>b;
        if(cod==2)
            if(verificare(a,b))
                out<<"DA"<<'\n';
            else
                out<<"NU"<<'\n';
        else
            reuniune(a,b);
    }
    return 0;
}