#include<fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int n,m,x,y,c,r[100001];
int cauta(int x)
{
    if(x==r[x]) return x;
    r[x]=cauta(r[x]);
    return r[x];
}
void unire(int x,int y)
{
    int rx=cauta(x);
    int ry=cauta(y);
    if(rx!=ry)
        r[rx]=ry;
}
int main()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        r[i]=i;
    for(int i=1;i<=m;i++)
    {
        cin>>c>>x>>y;
        if(c==1) unire(x,y);
        else if (cauta(x)==cauta(y)) cout<<"DA"<<endl;
        else cout<<"NU"<<endl;
    }
    return 0;
}