#include <fstream>

using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int sef[100003];
int sef_sup(int nod)
{
    if(sef[nod]==nod) return nod;
    return sef[nod]=sef_sup(sef[nod]);
}
void unire(int x, int y)
{
    int sefx=sef_sup(x);
    int sefy=sef_sup(y);
    sef[sefx]=sefy;
}
int main()
{
    int n, m, x, y, i, c;
    cin>>n>>m;
    for(i=1;i<=n;i++)
        sef[i]=i;
    for(i=1;i<=m;i++)
    {
        cin>>c>>x>>y;
        if(c==1) unire(x,y);
        else
        {
            if(sef_sup(x)==sef_sup(y)) cout<<"DA"<<'\n';
        else cout<<"NU"<<'\n';

        }
    }
    return 0;
}