#include <fstream>
#include <string>

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

int n, m, q, x, y, v[100010];

int parinte(int a){
    if(v[a] == a)
        return a;
    return v[a] = parinte(v[a]);
}

int main()
{
    fin >> n >> m;
    for(int i = 1; i <= n; ++i)
        v[i] = i;

    for(int i = 1; i <= m; ++i){
        fin >> q >> x >> y;
        if(q == 1){
            x = parinte(x);
            y = parinte(y);
            v[y] = x;
        }
        else {
            if(parinte(x) == parinte(y)){
                fout << "DA\n";
            }
            else {
                fout << "NU\n";
            }
        }
    }
    return 0;
}