#include <bits/stdc++.h>

using namespace std;

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

const int N = 1e5 + 1;
int n, m, tip, x, y;
int t[N], nr[N];

int radacina(int x){
    if(t[x] == 0)
        return x;

    t[x] = radacina(t[x]);
    return t[x];
}

void reuniune(int x, int y){
    int rx = radacina(x);
    int ry = radacina(y);
    if(nr[rx] > nr[ry]){
        t[ry] = rx;
        nr[rx] += nr[ry];
    }else{
        t[rx] = ry;
        nr[ry] += nr[rx];
    }
}

inline bool verif(int x, int y){
    return radacina(x) == radacina(y);
}

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

    while(m--){
        f >> tip >> x >> y;
        if(tip == 1)
            reuniune(x, y);
        else{
            if(verif(x, y))
                g << "DA\n";
            else
                g << "NU\n";
        }
    }

    f.close();
    g.close();
}