# include <fstream>
# define DIM  100010
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int t[DIM],i,cod,x,y,n,m,ra,rb;
int rad (int x){
    int y=x,aux;
    while(t[y]>0)
        y=t[y];
    while(t[x]>0){
        aux=t[x];
        t[x]=y;
        x=aux;
    }
    return y;
}
int main () {
    fin>>n>>m;
    for(i=1;i<=n;i++)
        t[i]=-1;
    for(i=1;i<=m;i++){
        fin>>cod>>x>>y;
        ra=rad(x);
        rb=rad(y);
        if(cod==1){
            if(ra!=rb){
                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;
}