#include <fstream>

using namespace std;

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

int n, t[100001], m, x, y, a, b, cod, i;

int rad(int nod){
    int sol = nod;
    while(t[sol] > 0)
        sol = t[sol];
    while(t[nod] > 0){
        int a = t[nod];
        t[nod] = sol;
        nod = a;
    }

    return sol;
}

int main(){
    fin>>n>>m;
    for(i=1;i<=n;i++)
        t[i] = -1;
    while(m--){
        fin>>cod>>x>>y;
        a = rad(x);
        b = rad(y);
        if(cod == 1 && a != b){
            t[b] += t[a];
            t[a] = b;
        }
        if(cod == 2){
            if(a == b)
                fout<<"DA\n";
            else
                fout<<"NU\n";
        }
    }
    return 0;
}