#include<iostream>
#include<fstream>
#include<string>
#include<algorithm>
#include<vector>
#include<set>
#include<map>

#define NMAX 100005

using namespace std;

ifstream f("disjoint.in");
ofstream g("disjoint.out");


int father[NMAX], group[NMAX], n, m;

int findFather(int node)
{
    if(node == father[node])
        return node;
    int new_father = findFather(father[node]);
    father[node] = new_father;
    return new_father;
}

int main ()
{
    int a, b, tip;

    f >> n >> m;
    for(int i = 1; i <= n; i++) {
        father[i] = i;
        group[i] = 1;
    }

    for(int i = 1; i <= m; i++) {
        f >> tip >> a >> b;
        int fa = findFather(a);
        int fb = findFather(b);
        if(tip == 1) {
            if(fa == fb)
                continue;
            if(group[fa] > group[fb]) {
                father[fb] = fa;
                group[fa] += group[fb];
            }
            else {
                father[fa] = fb;
                group[fb] += group[fa];
            }
        }
        else {
            if(fa == fb) {
                g <<"DA\n";
            }
            else {
                g << "NU\n";
            }
        }
    }

    return 0;
}