#include <fstream>
#define NMAX 100005
using namespace std;

ifstream f("disjoint.in");
ofstream g("disjoint.out");
int T[NMAX];
int n, m, cer, x, y;
int rad;
int opParc(int x){
    if(T[x] == x)
    {
        rad = x;
        return x;
    }
    int ajut = opParc(T[x]);
    T[x]=ajut;
    return ajut;

}

void init(){
    for(int i=1; i<=n; i++)
        T[i]=i;
}
int main()
{
    f>>n>>m;
    init();
    for(int i=1; i<=m; i++){
        f>>cer>>x>>y;
        if(cer == 2){
            if(opParc(x) == opParc(y))
                g<<"DA"<<'\n';
            else g<<"NU"<<'\n';
        }
        else {
            T[opParc(y)]=opParc(x);
        }
    }
    return 0;
}