#include <bits/stdc++.h>

using namespace std;

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

int n, m, p[100003], pos, x, y, cod;

int find(int nod)
{
	if(p[nod] == nod) return nod;
	pos = find(p[nod]);
	p[nod] = pos;
	return pos;
}

void uneste(int a, int b)
{
	a = find(a);
	b = find(b);
	p[a] = b;
}

int main(){
	in >> n >> m;
	for(int i = 1; i <= n; i++)	p[i] = i;
	for(int i = 1; i <= m; i++)
	{
		in >> cod >> x >> y;
		if(cod == 1)
		{
			uneste(x, y);
		}
		else
		{
			if(find(x) == find(y)) out << "DA\n"; else out << "NU\n";
		}
	}
	return 0;
}