#include <iostream>
#include <fstream>
#define max 100001
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");

int m,n,v[max],i,c,o,a,b;

int main()
{
    f>>n>>m;
    for(i=1; i<=m; i++)
        v[i] = i;
    while(f>>o>>a>>b)
        if(o == 1)
        {
            c = v[b];
            for(i=1; i<=m; i++)
                if(v[i] == c)
                    v[i] = v[a];
        }
        else
            if(v[a]==v[b])
                g << "DA\n";
            else
                g << "NU\n";
    return 0;
}