#include <fstream>

using namespace std;
ifstream f1("disjoint.in");
ofstream f2("disjoint.out");
#define MX 100100

int n, m, tata[MX];

void join(int x, int y)
{
    while ( tata[x] )
        x= tata[x];

    while ( tata[y] )
        y= tata[y];

    tata[y]= x;
}

bool same_set(int x, int y)
{
    while ( tata[x] )
        x= tata[x];

    while ( tata[y] )
        y= tata[y];

    return x == y;
}

int main()
{
    int i, cod, x, y;
    f1>>n>>m;

    for (i=1; i<=m; i++)
    {
        f1>>cod>>x>>y;
        if ( cod == 1 )
            join(x,y);
        else
            if ( same_set(x,y) )
                f2<<"DA\n";
            else f2<<"NU\n";
    }

    f2.close();
    return 0;
}