#include <bits/stdc++.h>

using namespace std;
ifstream fin ("disjoint.in");
ofstream fout ("disjoint.out");
const int MAX = 100005;
int n,v[MAX];
inline int grup(int x)
{
    while(x != v[x]){
        x = v[x];
    }
    return x;
}
int main()
{
    int m,p,x,y;
    fin >> n >> m;
    for(int i = 1; i <= n; i++)
        v[i] = i;
    for(int i = 1; i <= m; i++){
        fin >> p >> x >> y;
        x = grup(x);
        y = grup(y);
        if(p == 1){
            if(x != y){
                v[y] = x;
            }
        } else {
            if(x == y)
                fout << "DA" << "\n";
            else
                fout << "NU" << "\n";
        }
    }
    return 0;
}