#include<cstdio>
#define NM 100001
int rang[NM],gr[NM];
int find(int x)
{
	if (gr[x]!=x)
		gr[x]=find(gr[x]);
	return gr[x];
}
void unesc(int x, int y)
{
	if (rang[x]>rang[y])
		gr[x]=y;
	else
	{
		gr[y]=x;
		rang[x]+=(rang[x]==rang[y]);
	}
}
int main()
{
	freopen("disjoint.in","r",stdin);
	freopen("disjoint.out","w",stdout);
	int N,M;
	scanf("%d%d",&N,&M);
	for (int i=1; i<=N; ++i)
		gr[i]=i,rang[i]=0;
	int x,y,op,u,v;
	while (M--)
	{
		scanf("%d%d%d",&op,&x,&y);
		u=find(x);
		v=find(y);
		if (op==1)
		{
			unesc(u,v);
			continue;
		}
		if (u==v) printf("DA\n");
		else
			printf("NU\n");
			
	}
	return 0;
}