#include<fstream>
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");
int N,M,x,y,tip,T[100001],P[100001];
int Find(int x){
    int rad=x;
    while(T[rad])rad=T[rad];
    int tmp;
    while(T[x]){
        tmp=T[x];
        T[x]=rad;
        x=tmp;
    }
    return rad;
}
void Reunire(int x,int y){
    if(P[x]>P[y]){
        T[y]=x;
    }else if(P[x]<P[y]){
        T[x]=y;
    }else{
        ++P[x];
        T[y]=x;
    }
}
int main()
{
    f>>N>>M;
    while(M--){
        f>>tip>>x>>y;
        if(tip==1){
            if(Find(x)!=Find(y))
                Reunire(x,y);
        }else{
            if(Find(x)==Find(y))g<<"DA\n";
            else g<<"NU\n";
        }
    }
    return 0;
}