#include<cstdio>

#define BM 100005

int mp[BM];
int a[BM],n,m;

int main () {
	int i,op,x,y,j,k;
	freopen("disjoint.in","r",stdin);
	freopen("disjoint.out","w",stdout);
	scanf("%d %d",&n,&m);
	for(i=1;i<=n;++i)mp[i]=i;
	for(i=1;i<=m;++i){
		scanf("%d %d %d",&op,&x,&y);
	//	fprintf(stderr,"%d %d\n",mp[x],mp[y]);
		if(op==1)mp[x]=mp[y];
		else{
			for(j=mp[x];j!=mp[j];j=mp[j]);
			for(k=mp[y];k!=mp[k];k=mp[k]);
			if(j==k)printf("DA\n");
			else printf("NU\n");
		}
	}
	return 0;
}