#include <fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int tata[100001];
int sef(int x)
{
    if(x==tata[x])return x;
    else return tata[x]=sef(tata[x]);
}
void unire(int x,int y)
{
    int sefx,sefy;
   sefx=sef(x);
   sefy=sef(y);
   tata[sefx]=sefy;
}
int main()
{
    int n,m,i,cod,x,y;
    cin>>n>>m;
    for(i=1;i<=n;i++)
    {
        tata[i]=i;
    }
    for(i=1;i<=m;i++)
    {
        cin>>cod>>x>>y;
        if(cod==2)
            if(sef(x)==sef(y))cout<<"DA"<<endl;
                else cout<<"NU"<<endl;
        if(cod==1)unire(x,y);
    }
    return 0;
}