#include<stdio.h>
#include<stdlib.h>

#include<queue>
#include<stack>
#include<vector>
#include<list>

#include <fstream>
#include <iostream>

using namespace std;

#define MAXN 100000
#define MAXM 100000

int M,N;

typedef struct nod{
	int parent;
	int height;
}nod;

nod A[MAXN+1];

ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

int findroot(int x){
	while(A[x].parent!=0)
		x=A[x].parent;
	return x;
}

#define maxim(a,b) a>b?a:b 

int main(){

	fin >> N >> M;
	
	int x,y,cod;
	int rx,ry;
	for(int i=0;i<M;i++){
		fin >> cod >> x >> y;
		if(cod==1){
			rx=findroot(x);
			ry=findroot(y);
			if(A[rx].height<A[ry].height){
				A[rx].parent=ry;
				A[ry].height=maxim(A[ry].height,(A[rx].height+1));
			}
			else{
				A[ry].parent=rx;
				A[rx].height=maxim(A[rx].height,(A[ry].height+1));
			}
		}
		else{
			rx=findroot(x);
			ry=findroot(y);
			if(rx==ry)
				fout << "DA" << endl;
			else
				fout << "NU" << endl;
		}
	}

	fin.close();
    fout.close();

	return 0;
}