#include <fstream>
using namespace std;

ifstream cin ("disjoint.in");
ofstream cout ("disjoint.out");

int r[100001];

int findd (int x)
{
    if (r[x] == x)
    {
        return x;
    }
    return r[x] = findd(r[x]);
}

void conectare (int x , int y)
{
    int rx = findd(x) , ry = findd(y);
    if (rx == ry)
    {
        return;
    }
    r[rx] = ry;
}

int main()
{
    int n,m;
    cin >>n>>m;
    for (int i = 1; i <= n; i++)
    {
        r[i] = i;
    }
    for (int i = 1; i <= m; i++)
    {
        int c;
        cin >>c;
        if (c == 1)
        {
            int x,y;
            cin >>x>>y;
            conectare(x , y);
        }
        else
        {
            int x,y;
            cin >>x>>y;
            if (findd(x) == findd(y))
            {
                cout <<"DA\n";
            }
            else
            {
                cout <<"NU\n";
            }
        }
    }
    return 0;
}