#include<fstream>
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");
int t[100005];
int main()
{
    int n,m,i,j,x,y,p,sem,a;
    f>>n>>m;
    for(i=1;i<=m;i++)
    {
        f>>p>>x>>y;
        if(p==1)t[y]=x;
          else{
            sem=0;
            a=t[y];
            while(a!=0)
            {
                if(a==x){sem=1;break;}
                a=t[a];
            }
            if(!sem){
            a=t[x];
            while(a!=0)
            {
                if(a==y){sem=1;break;}
                a=t[a];
            }
            }
            if(sem)g<<"DA\n";
               else g<<"NU\n";
          }
    }
    return 0;
}