#include <iostream>
#include <fstream>
using namespace std;
#define no 100002
ifstream f("disjoint.in");
ofstream g("disjoint.out");
int v[no],c,n,m,a,b,i;
int main()
{
   f>>n>>m;
   for(i=1;i<=n;i++)
    v[i]=i;
   for(i=1;i<=m;i++)
   {
       f>>c>>a>>b;
       if(c==1) {
         while(v[a]!=a)a=v[a];
       while(v[b]!=b)b=v[b];
       v[a]=b;
       }
       else{
       while(v[a]!=a)a=v[a];
       while(v[b]!=b)b=v[b];
       if(b==a) g<<"DA"<<'\n'; else g<<"NU"<<'\n';
       }
   }
}