#include <iostream>
#include <fstream>

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

int root[100005], n, m, x, y, tx, ty, i, cod;

int find(int a)
{
    int t, i;
    for(t=a;t!=root[t];t=root[t]);
    i=a;
    while(i!=t)
    {
        x=root[i];
        root[i]=t;
        i=x;
    }
    return t;
}


void unite(int a, int b)
{
    int ta, tb;
    ta=find(a);
    tb=find(b);
    root[tb]=ta;
}

int main()
{
    fin>>n>>m;
    for(i=1;i<=n;i++)
        root[i]=i;
    for(i=1;i<=m;i++)
    {
        fin>>cod;
        if(cod==1)
        {
            fin>>x>>y;
            unite(x,y);
        }
        else
        {
            fin>>x>>y;
            tx=find(x);
            ty=find(y);
            if(tx==ty)
                fout<<"DA"<<'\n';
            else
                fout<<"NU"<<'\n';
        }
    }
    return 0;
}