#include <iostream>
#include <vector>
#include <fstream>

using namespace std;

ifstream f("disjoint.in");
ofstream g("disjoint.out");
vector<int*> root;

int getroot(int x)
{
	while (*root[x] != x)
	{
		root[x] = root[*root[x]];
		x = *root[x];
	}
	return x;
}
void union1(int x, int y)
{
	int p = getroot(x);
	int q = getroot(y);
	*root[q] = *root[p];
	root[q] = root[p];
}

int main()
{
	int n, m, cod, x, y;
	f >> n >> m;
	vector<vector<int>> adjacence_list(n+1, vector<int>(0));
	root = vector<int*>(n + 1);
	for (int i = 1; i <= n; i++)
	{
		adjacence_list[i].push_back(i);
		root[i] = new int(i);
	}
	for (int i = 1; i <= m; i++)
	{
		f >> cod >> x >> y;
		if (cod == 1) {
			adjacence_list[x].push_back(y);
			union1(x,y);
		}
		else
		{
			if (*root[x] == *root[y])
				g << "DA\n";
			else
				g << "NU\n";
		}
	}
	return 0;
}