#include <bits/stdc++.h>
using namespace std;

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

int n, m, op;
int tata[100002], inaltime[100002];

int getRoot(int x)
{
    int root=x;
    while(root!=tata[root])
    {
        root=tata[root];
    }
    while(x!=tata[x])
    {
        int tx=tata[x];
        tata[x]=root;
        x=tx;
    }
    return root;
}

void unite(int x, int y)
{
    x=getRoot(x);
    y=getRoot(y);
    if(inaltime[x]>inaltime[y])
    {
        tata[y]=x;
    }
    else
        if(inaltime[x]>inaltime[y])
    {
        tata[x]=y;
    }
    else
    {
        tata[x]=y;
        inaltime[y]++;
    }
}

int main()
{
    fin>>n>>m;
    for(int i=1; i<=n; i++)
    {
        tata[i]=i;
        inaltime[i]=1;
    }
    for(int i=1; i<=m; i++)
    {
        int x, y;
        fin>>op>>x>>y;
        if(op==1)
        {
            unite(x, y);
        }
        else
        {
            if(getRoot(x)==getRoot(y))
            {
                fout<<"DA";
            }
            else
            {
                cout<<"NU";
            }
        }
    }
    return 0;
}