#include<fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int n,m,i,M,a,b,x,ra,rb;
int T[100000];

int rad(int x){
    while(T[x]>0)
        x=T[x];
    return x;
}

int main(){
    fin>>n>>m;
    for(i=1;i<=n;i++)
        T[i]=-1;

    for(M=1;M<=m;M++){
        fin>>x>>a>>b;
        ra=rad(a);
        rb=rad(b);
        if(x==1){
            if(T[ra]<T[rb]){
                T[ra]+=T[rb];
                T[rb]=ra;
            }
            else{
                T[rb]+=T[ra];
                T[ra]=rb;
            }
        }
        else{
            if(ra==rb)
                fout<<"DA\n";
            else
                fout<<"NU\n";
        }
    }
    return 0;
}