#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int i,j,x,y,aux,p,t[100010],m,n,tx,ty;
int dettata(int x)
{
    if(t[x]==x)
    {
        return x;
    }
    else
    {
        return dettata(t[x]);
    }
}
void act(int x,int y)
{
    int nod;
    while(x!=t[x])
    {
        nod=t[x];
        t[x]=y;
        x=nod;

    }
}
int main()
{
    fin>>n>>m;
    for(i=1;i<=n;i++)
    {
        t[i]=i;
    }
    for(i=1;i<=m;i++)
    {
        fin>>p>>x>>y;
        if(p==1)
        {
            t[dettata(x)]=t[dettata(y)];
        }
        else
        {
            tx=dettata(x); ty=dettata(y);
            if(dettata(x)==dettata(y))
            {
                fout<<"DA"<<'\n';
            }
            else
            {
                fout<<"NU"<<'\n';
            }
            act(x,tx);
            act(y,ty);

        }
    }
    return 0;
}