/**
infoarena.ro/problema/disjoint
Paduri de multimi disjuncte
*/
#include <fstream>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
const int nmax=100005;
int vt[nmax];
int n,m;
int radacina(int x)
{
    if(vt[x]!=x)
        vt[x]=radacina(vt[x]);
    return vt[x];
}
void unire(int x,int y)
{
    if(x!=y)
    if(x<y)
        vt[y]=x;
    else
        vt[x]=y;
    /**if(x==y)
    {
        vt[x]=y;
        x++;
    }*/
}
int main()
{
   int t,x,y;
   fin>>n>>m;
   for(int i=1;i<=n;i++)
    vt[i]=i;

    for(int i=1;i<=m;i++)
    {
        fin>>t>>x>>y;
        int a=radacina(x);
        int b=radacina(y);
        if(t==1)
            unire(a,b);
        else
            if(a==b)
                fout<<"DA"<<endl;
            else
                fout<<"NU"<<endl;

    }
   return 0;
}