#include <iostream>
#include <bits/stdc++.h>
#include <fstream>
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");
int m, t[100002];
inline int tata(int x)
{
    while(t[x])
        x=t[x];
    return x;
}
inline void unite(int n1,int n2)
{
    t[tata(n1)]=tata(n2);
}
int main()
{
    int op, x, y, r, cx;
    f>>m>>m;
    while(f>>op>>x>>y)
    {
        if(op==1)
            unite(x, y);
        else
        {
            r=tata(x);
            while(t[x])
            {
                cx=t[x];
                t[x]=r;
                x=cx;
            }
            if(r==tata(y))
                g<<"DA\n";
            else
                g<<"NU\n";
        }
    }
    return 0;
}