#include <fstream>
using namespace std;
ifstream fin ("disjoint.in");
ofstream fout ("disjoint.out");
int N,T,t[100010],i,ra,rb,test,a,b;
int rad(int x){
    while(t[x]>0)
        x=t[x];
    return x;
}
int main(){
    fin>>N>>T;
    for(i=1;i<=N;i++)
        t[i]=-1;
    for(i=1;i<=T;i++){
        fin>>test>>a>>b;
        ra=rad(a);
        rb=rad(b);
        if(test==1){
            if(ra!=rb){
            if(ra<rb){
                t[ra]+=t[rb];
                t[rb]=ra;
            }
            else{
                t[rb]+=t[ra];
                t[ra]=rb;
            }
            }
        }
        else{
            if(rb==ra)
                fout<<"DA"<<"\n";
            else
                fout<<"NU"<<"\n";
        }
    }
    return 0;

}