#include <iostream>
#include <fstream>
std::ifstream in("disjoint.in");
std::ofstream out("disjoint.out");

using namespace std;
int sir[100005];

int n,m;
int a,b,c;

int main()
{
    in>>n>>m;
    for(int i=0;i<m;i++)
    {
        in>>a>>b>>c;
        if(a==1)
        {
            sir[b]=a;
        }
        else if(a==2)
        {
            if(sir[b]==sir[c])
            {
                out<<"NU\n";
            }
            else out<<"DA\n";
        }
    }
    return 0;
}