#include <iostream>
#include <fstream>

using namespace std;

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

int v[100001],nr[100001];

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

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

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

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