#include<iostream>
#include<fstream>
#include<vector>
using namespace std;
int i, n, m, op, x, y;
vector<int>parent;
ifstream f("disjoint.in");
ofstream g("disjoint.out");

int find(int x)
{
	while (parent[x] != x)
	{
		parent[x] = parent[parent[x]];
		x = parent[x];
	}
	return x;
}

void reuniune(int x, int y) {
	int i = find(x);
	int j = find(y);
	parent[i] = parent[j];
}

int main() {
	f >> n >> m;
	parent.resize(n + 1);
	for (i = 1; i <= n; i++)
		parent[i] = i;
	for(i=1;i<=m;i++)
	{
		f >> op;
		if (op == 1) {
			f >> x >> y;
			reuniune(x, y);

		}
		else {
			f >> x >> y;
			if (find(x) == find(y))
				g << "DA\n";
			else
				g << "NU\n";

		}
	}
}