#include <fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

int tata[100001];

int getroot(int nod)
{
    while(tata[nod]>0)
    {
        nod=tata[nod];
    }
    return nod;
}

int main()
{
    int n, m, i, x, y, t;
    fin>>n>>m;
    for(i=1;i<=n;i++)
    {
        tata[i]=-1;
    }
    for(i=1;i<=m;i++)
    {
        fin>>t>>x>>y;
        int rx=getroot(x);
        int ry=getroot(y);
        if(t==1)
        {
            if(tata[rx]>tata[ry])
            {
                tata[ry]+=tata[rx];
                tata[rx]=ry;
            }
            else
            {
                tata[rx]+=tata[ry];
                tata[ry]=rx;
            }
        }
        else
        {
            if(rx==ry)
            {
                fout<<"DA"<<"\n";
            }
            else
            {
                fout<<"NU"<<"\n";
            }
        }
    }
}