#include <cstdio>
#define LIM 100023
int t[LIM],ct[LIM];
int n,m;
int tata(int a)
{
    while(t[a]!=0) a=t[a];
    return a;
}
int main()
{
    freopen ("disjoint.in","r",stdin);
    freopen ("disjoint.out","w",stdout);
    scanf("%d%d",&n,&m);
    int tip,x1,x2;
    for(int i=1;i<=LIM;i++) ct[i]=1;
    for(int i=1;i<=m;i++)
    {
        scanf("%d%d%d",&tip,&x1,&x2);
        x1=tata(x1);
        x2=tata(x2);
        if(tip==1)
        {
            if(ct[x1]>=ct[x2])
            {
                t[x2]=x1;
                ct[x1]+=ct[x2];
            }
            else
            {
                t[x1]=x2;
                ct[x2]+=ct[x1];
            }
        }
        else
        {
            x1=tata(x1);
            x2=tata(x2);
            if(x1==x2) printf("DA\n");
            else printf("NU\n");
        }
    }
}