#include<bits/stdc++.h>

using namespace std;

const int NMAX = 1e5 + 5;
int n, m, ans[NMAX], s, tata[NMAX], rang[NMAX];

void unite(int a, int b)
{
    while(a != tata[a])
        a = tata[a];
    while(b != tata[b])
        b = tata[b];
    if(rang[a] < rang[b])
    {
        rang[b] = rang[a];
        tata[a] = b;
    }
    else
    {
        rang[a] += rang[b];
        tata[b] = a;
    }
}

void check(int a, int b)
{
    while(a != tata[a])
        a = tata[a];
    while(b != tata[b])
        b = tata[b];
    if(tata[a] == tata[b])
        cout << "DA\n";
    else
        cout << "NU\n";
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    freopen("disjoint.in", "r", stdin);
    freopen("disjoint.out", "w", stdout);
    
	cin >> n >> m;
	for(int i = 1; i <= n; i++)
	{
	    tata[i] = i;
	    rang[i] = 1;
	}
	
	int c, a, b;
	for(int i = 1; i <= m; i++)
	{
	    cin >> c >> a >> b;
	    if(c == 1)
	        unite(a, b);
	    else
	        check(a, b);
	}
}