#include<fstream>
#define DMAX 100001
using namespace std;

ifstream fin ("disjoint.in");
ofstream fout("disjoint.out");
int n,m,q,x,y,i,dad[DMAX];

int caut(int x)
{
    while(x!=dad[x])
        x=dad[x];
    return x;
}

int main()
{
    fin>>n>>m;
    for(i=1;i<=n;++i)
        dad[i]=i;
    for(i=0;i<m;++i)
    {
        fin>>q>>x>>y;
        if(q==2)
            if(caut(x)==caut(y))
                fout<<"DA"<<'\n';
            else
                fout<<"NU"<<'\n';
        else
            if(x<y)
                dad[y]=x;
            else
                dad[x]=y;
    }
    return 0;
}