#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
#define MAX 100005
int dad[MAX];
int sef(int i)
{
    if(dad[i] != i)
        dad[i] = sef(dad[i]);
    return dad[i];
}

int main()
{
    int n, m, cod, x, y;
    fin >> n >> m;
    for(int i = 1; i<=n; i++)
        dad[i] = i;

    for(int i = 1; i<=m; i++)
    {
        fin >> cod >> x >> y;
        x = sef(x);
        y = sef(y);

        if(cod == 1)
            dad[x] = dad[y];

        if(cod == 2)
        {
            if(x == y)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }

    return 0;
}