#include <fstream>

using namespace std;

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

int n, m, x, y, t;
int T[100005];

int get_root(int nod)
{
    while(T[nod] > 0)
        nod = T[nod];
   return nod;
}

int main()
{
    fin >> n >> m;
    for(int i = 1; i <= n; i++)
        T[i] = -1;
    for(int i = 1; i <= m; i++)
    {
        fin >> t >> x >> y;
        x = get_root(x);
        y = get_root(y);
        if(t == 1)
        {
            if(x == y)
                continue;
            if(T[x] < T[y])
            {
                T[x] += T[y];
                T[y] = x;
            }
            else
            {
                T[y] += T[x];
                T[x] = y;
            }
        }
        else
        {
            if(x == y)
                fout << "DA\n";
            else
                fout << "NU\n";
        }
    }
    return 0;
}