#include <fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int n,m;
int v[1002];
int cauta (int x)
{
    if (v[x]!=x)
        v[x]=cauta(v[x]);
    return v[x];
}
void reuniune (int x, int y)
{

    int vx=cauta(x);
    int vy=cauta(y);
    if (vx!=vy)
        v[y]=vx;
}
int verificare (int x, int y)
{

    int vx=cauta(x);
    int vy=cauta(y);
    if (vx!=vy)
        return 0;
    return 1;
}
int main()
{
    cin>>n>>m;
    for (int i=1;i<=n;i++)
    {
        v[i]=i;
    }
    for (int i=1;i<=m;i++)
    {
        int c,x,y;
        cin>>c>>x>>y;
        if (c==1)
        {
            reuniune(x,y);
        }
        else
        {
            if (verificare (x,y))
                cout<<"DA"<<endl;
            else
                cout<<"NU"<<endl;
        }
    }
}