# include <iostream>
# include <fstream>
using namespace std;

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

int T[100001],N,M,x,y,cod;

int radacina(int nod)
{
	int r;
	if(T[nod]==0)
		return nod;
	r=radacina(T[nod]);
	T[nod]=r;
	return r;
}

int main()
{
	int i,rx,ry;
	in>>N>>M;
	for(i=1;i<=M;i++)
	{
		in>>cod;
		in>>x>>y;
		if(cod==1)
		{
			rx=radacina(x);
			ry=radacina(y);
			T[y]=rx;
		}
		if(cod==2)
		{
			if(radacina(x)==radacina(y))
				out<<"DA"<<endl;
			else
				out<<"NU"<<endl;
		}
	}
	return 0;
}