#include <bits/stdc++.h>
#define nmax  100005
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int sol[nmax],n,m;
void Unio(int x,int y)
{
    sol[y]=x;
}
int Find(int x)
{
    int rad,y;
    rad=x;
    while(sol[rad]!=0)
        rad=sol[rad];
    while(x!=rad)
    {
        y=sol[x];
        sol[x]=rad;
        x=y;
    }
    return x;
}
int main()
{
    int op,x,y,i;
    fin>>n>>m;
    for(i=1;i<=m;i++)
    {
        fin>>op>>x>>y;
        x=Find(x);
        y=Find(y);
        if(op==1 && x!=y)
          Unio(x,y);
        else
        {
            if(x==y)
                fout<<"DA"<<"\n";
            else
                fout<<"NU"<<"\n";
        }
    }
    fin.close();
    fout.close();
    return 0;
}