#include <iostream>
#include <fstream>
#define nmax 100005

using namespace std;

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

int n, m;
int t, a, b;
int i, p1, p2;
int P[nmax], NR[nmax];

int root(int x)
{
    if (P[x] == x)
        return x;
    
    return root(P[x]);
}

void init()
{
    for (i=1; i<=n; i++)
        P[i] = i;
}

void citire()
{
    fin >> n >> m;
    
    init();
    
    for (i=1; i<=m; i++)
    {
        fin >> t >> a >> b;
        
        if (t == 1)
        {
            P[a] = b;
        }
        else
        {
            p1 = root(a);
            p2 = root(b);
            
            if (p1 == p2)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
        
    }
}

int main()
{
    citire();
    fin.close();
    fout.close();
    return 0;
}