#include <fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");

int sef[100001];

int boss(int x)
{
    if(sef[x]==x)
        return x;
    else
        return sef[x]=boss(sef[x]);
}

void unire(int x,int y)
{
    int sx=boss(x);
    int sy=boss(y);
    sef[sy]=sx;
}

int main()
{
    int n,m,c,x,y;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        sef[i]=i;
    for(int i=1;i<=m;i++)
    {
        cin>>c>>x>>y;
        if(c==1)
            unire(x,y);
        else
        {
            if(boss(x)==boss(y))
               cout<<"DA";
            else
                cout<<"NU";
            cout<<'\n';
        }
    }
    return 0;
}