#include <iostream>
#include <fstream>

using namespace std;

int tata[100005], n, m;
ifstream fin ("disjoint.in");
ofstream fout ("disjoint.out");

int Cautare(int x)
{
    int rad = x, y;
    while(tata[rad])
    {
        rad = tata[rad];
    }

    while (x != rad)
    {
        y = tata[x];
        tata[x] = rad;
        x = y;
    }
    return rad;
}

void Unificare(int x, int y)
{
    tata[x] = y;
}
void Read()
{
    fin >> n >> m;
    int x, y, op;
    for(int i = 1; i <= m; i++)
    {
        fin >> op >> x >> y;
        x = Cautare (x);
        y = Cautare (y);
        if(op == 1)
            Unificare(x, y);
        else
        {
            if(x == y)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }
}

int main()
{
    Read();
    return 0;
}