#include <bits/stdc++.h>

using namespace std;

ifstream f("disjoint.in");
ofstream g("disjoint.out");

int n,m,i,tip,x,y,xroot,yroot,tata[100020],Rank[100020];

int cauta(int x)
{
    if(tata[x] != x)
        tata[x] = cauta(tata[x]);
    return tata[x];
}
void Union(int x,int y)
{
    if(Rank[x] > Rank[y])
        tata[y] = x;
    else if(Rank[x] < Rank[y])
        tata[x] = y;
    else
    {
        tata[y] = x;
        ++ Rank[x];
    }
}
int main()
{
    f >> n >> m;
    for(i = 1; i <= n; ++ i)
        tata[i] = i;
    while(m --)
    {
        f >> tip >> x >> y;
        xroot = cauta(x);
        yroot = cauta(y);
        if(tip == 1)
        {
            if(x != y)
                Union(x,y);
        }
        else
        {
            if(xroot == yroot)
                g << "DA" << '\n';
            else
                g << "NU" << '\n';
        }
    }
}