#include<fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int n,m,t,x,y,G[100005];
int grupa(int a)
{
    if (G[a]==a) return a;
    G[a]=grupa(G[a]);
    return G[a];
}
inline void unific(int a, int b)
{
    G[grupa(a)]=G[grupa(b)];
}
int main()
{
    int i;
    fin>>n>>m;
    for (i=1;i<=n;++i)
        G[i]=i;
    for (i=1;i<=m;++i)
    {
        fin>>t>>x>>y;
        if (t==1) unific(x,y);
        else
        {
            if (grupa(x)==grupa(y)) fout<<"DA\n";
            else fout<<"NU\n";
        }
    }
    return 0;
}