#include <iostream>
#include <fstream>
#include <map>
using namespace std;
map<int,int> fatherOf;
map<int,int> grade;
int findFather(int node){
    if(fatherOf[node] == node){
        return node;
    }
    fatherOf[node] = findFather(fatherOf[node]);
    return fatherOf[node];
}
int main() {
    int n,m,x,y,A,B,o;
    freopen("disjoint.in","r", stdin);
    freopen("disjoint.out", "w", stdout);
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        fatherOf[i] = i;
        grade[i] = 1;
    }
    for(int i=1;i<=m;i++){
        cin>>o;
        cin>>x>>y;
        A = findFather(x); B = findFather(y);
        if(o==2 && A==B && A != 0) cout<<"DA\n";
        else if(o==2) cout<<"NU\n";
        if(o==2) continue;
        if(A == B) continue;
        if(grade[A] < grade[B]){
            fatherOf[A] = B;
            grade[B] += grade[A];
        } else{
            fatherOf[B] = A;
            grade[A] += grade[B];
        }
     }
    return 0;
}