#include <bits/stdc++.h>

using namespace std;

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

int n,m,T[501],op,x,y;

int Find(int nod)
{
    while (T[nod]!=0)
    {
        nod=T[nod];
    }
    return nod;
}
void Union(int nod1, int nod2)
{
    T[nod2]=nod1;
}

int main()
{
    cin>>n>>m;
    for (int i=1; i<=m; i++)
    {
        cin>>op>>x>>y;
        if (op==1)
        {
            if (Find(x)!=Find(y)) Union(x, y);
        }
        else
        {
            if (Find(x)==Find(y)) cout<<"DA"<<'\n';
            else cout<<"NU"<<'\n';
        }
    }
}