#include <bits/stdc++.h>
#define NMAX 100005
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");
int tata[NMAX],n,m;
int root(int node)
{
    if(tata[node]==0) return node;
    tata[node]=root(tata[node]);
    return tata[node];
}
void unite(int x, int y)
{
    tata[x]=root(y);
}
int main()
{
    f>>n>>m;
    int i,x,y,c;
    for(i=1;i<=m;i++)
    {
        f>>c>>x>>y;
        if(c==2)
        {
            if(root(x)==root(y)) g<<"DA\n";
            else g<<"NU\n";
        }
        else unite(x,y);
    }
    return 0;
}