#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("date.in");

const int NMAX=100001;

int dad[NMAX];
int rbk[NMAX];
int n,m

void init()
{
    for(int i=1; i<=n; i++)
        dad[i]=i;
}
int do_find(int nod)
{
    if(dad[nod]!=nod)
    {
        int repr= do_find(dad[nod]);
        dad[nod]= repr;//compresia drumurilor
        return repr;
    }
    return dad[nod];
}

int do_union(int n1,int n2)
{
    int rx = do_find(n1);
    int ry = do_find(n2);
    if(rnk[rx]==rnk[ry])
    {
        dad[rx]=ry;
        rnk[ry]++;
    }
    else if(rnk[rx]< rnk[ry])
        dad[rx]=ry;
    else
    {
        dad[ry]=rx;
    }
}
int main()
{
    fin>>N>>M;
    init();
    for(int i=1; i<=M; i++)
    {
        int cod, x, y;
        if(cod == 1)
        {
            int rx = do_find(x);
            int ry = do_find(y);
            do_union(rx,ry);
        }
        else
        {
            int rx = do_find(x);
            int ry = do_find(y);
            if(rx==ry)
                fout<<"DA\n";
            else
                fout<<"NU\n";
        }
    }
    return 0;
}