#include <fstream>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int n,m,t[100001];
inline int radacina(int x)
{
   int rad, y;
    rad = x;
    while (t[rad] != 0) rad = t[rad];

    while (x != rad)
    {
        y = t[x];
        t[x] = rad;
        x = y;
    }
    return rad;
}
inline void unire(int a,int b)
{
    t[b]=a;
}
int main()
{
    fin>>n>>m;
    for (int i=1;i<=m;i++)
    {
        int a,b,op;
        fin>>op>>a>>b;
        int r1=radacina(a),r2=radacina(b);
        if (op==1)
        {
            unire(r1,r2);
        }
        else
        {
            if (r1==r2)
            {
                fout<<"DA\n";
            }
            else
                fout<<"NU\n";

        }
    }
    return 0;
}