#include <bits/stdc++.h>

using namespace std;

int NrNodes;
vector<int> Fathers;

int Find(int Node) {
    if(Fathers[Node] == 0)
        return Node;
    Fathers[Node] = Find(Fathers[Node]);
    return Fathers[Node];
}

void Union(int NodeX, int NodeY) {
    Fathers[NodeY] = NodeX;
}

int main() {
    ifstream fin("disjoint.in");
    ofstream fout("disjoint.out");

    fin >> NrNodes;
    Fathers.resize(NrNodes + 1, 0);

    int M;
    fin  >> M;
    for(int i = 0; i < M; i++){
        int cod, X, Y;
        fin >> cod >> X >> Y;

        int fatherX = Find(X), fatherY = Find(Y);
        if(cod == 1){
            Union(fatherX,fatherY);
        } else{
            if( fatherX== fatherY)
                fout << "DA" << endl;
            else
                fout << "NU" << endl;
        }
    }

    fin.close();
    fout.close();
    return 0;
}