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

using namespace std;

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

vector<int> t;

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

void unite(int x, int y)
{
	int rx = find(x);
	int ry = find(y);
	t[rx] = ry;
}

int main()
{
	int n, m;
	fin >> n >> m;

	t.resize(n + 1);

	for (int i = 0; i < m; i++)
	{
		int c, x, y;
		fin >> c >> x >> y;

		if (c == 1)
		{
			unite(x, y);
		}
		else
		{
			if (find(x) == find(y))
			{
				fout << "DA\n";
			}
			else
			{
				fout << "NU\n";
			}
		}
	}
}

/*

	

*/