#include <bits/stdc++.h>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int n,m,t[100005];
int caut(int x)
{
    if(x==t[x])return x;
    else return t[x]=caut(t[x]);
}
int unesc(int x, int y)
{
    t[caut(x)]=caut(y);
}
int main()
{
    fin>>n>>m;
    for(int i=1;i<=n;++i)t[i]=i;
    for(int i=1;i<=m;++i)
    {
        int c,x,y;
        fin>>c>>x>>y;
        if(c==1)unesc(x,y);
        else
        {
            if(caut(x)==caut(y))fout<<"DA"<<'\n';
            else fout<<"NU"<<'\n';
        }
    }
    return 0;
}