#include <fstream>
#define MAX 100001

using namespace std;

int dad[MAX];
int find_daddy(int x)
{
    if(dad[x] == x)
        return x;

    return dad[x] = find_daddy(dad[x]);
}

inline void join(int x, int y)
{
    int rx, ry;

    rx = find_daddy(x);
    ry = find_daddy(y);
    dad[ry] = rx;
}

int main()
{
    int n, m, i, cer, a, b;

    ifstream fin("disjoint.in");
    ofstream fout("disjoint.out");

    fin >> n >> m;

    for(i = 1; i <= n; i++)dad[i] = i;
    for(i = 1; i <= m; i++)
    {
        fin >> cer >> a >> b;

        if(cer == 1)join(a, b);
        else if(find_daddy(a) == find_daddy(b))fout << "DA" << '\n';
        else fout << "NU" << '\n';
    }

    fin.close();
    fout.close();

    return 0;
}