#include <cstdio>
#include <fstream>

#define NMax 1000053
using namespace std;

int root[NMax];
int x,y,n,m,p;
int main()
{
    ifstream f("disjoint.in");
    ofstream g("disjoint.out");
    f >> n >> m;
    for(int i = 1; i <= m; ++i){
        f >> p >> x >> y;
        int w = y;
        while(root[w] != 0)
            w = root[w];
        int t = x;
        while(root[t] != 0)
            t = root[t];
        if(p == 1){
            root[t] = w;
        }else{
            if(t != w){
                g << "NU" <<"\n";
            }else
                g << "DA" <<"\n";
        }
    }
    return 0;
}