#include <fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
#define MAX 100008
int tata[MAX],n,m;
int findtata(int x);
int main()
{
    int i;
    fin>>n>>m;
    for(i=1; i<=n; i++)
        tata[i]=i;
    while(m--)
    {
        int t,a,b,ta,tb;

        fin>>t>>a>>b;
        ta=findtata(a);
        tb=findtata(b);

        if(t==1)
            tata[ta]=tb;
        else
            if(ta==tb)fout<<"DA\n";
            else fout<<"NU\n";
    }

    return 0;
}
int findtata(int x)
{
    if(tata[x]==x)return x;
    int t=findtata(tata[x]);
    tata[x]=t;
    return t;
}