#include <cstdio>
using namespace std;
//ifstream fin ("disjoint.in");
//ofstream fout ("disjoint.out");

int n,i,m,rx,ry,f[100001],x,j;

int rad (int t) {

    while (f[t]>0)
        t=f[t];
    return t;

}

int main () {

    freopen ("disjoint.in","r",stdin);
    freopen ("disjoint.out","w",stdout);

    //fin>>n>>m;
    scanf ("%d%d", &n,&m);
    for (i=1;i<=n;i++)
        f[i]=-1;


    while (m--) {
        //fin>>x>>i>>j;
        scanf ("%d%d%d", &x,&i,&j);
        rx=rad(i);
        ry=rad(j);
        if (x==2){
            if (rx==ry)
                //fout<<"DA\n";
                printf ("DA\n");
            else
                //fout<<"NU\n";
                printf ("NU\n");
        }else{
            if (rx != ry) {
                if (f[rx]<=f[ry]) {
                    f[rx]+=f[ry];
                    f[ry]=rx;
                }else {
                    f[ry]+=f[rx];
                    f[rx]=ry;
                }
            }
        }
    }


    return 0;
}