#include <fstream>
#define NMAX 100002
using namespace std;

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

int tata[NMAX], n, h[NMAX], m;

void uni(int x, int y)
{
    if(h[x]<h[y])
    {
        tata[x]=y;
    }
    else if(h[y]<h[x])
    {
        tata[y]=x;
    }
    else //inaltimile sunt egale
    {
        tata[y]=x;
        h[y]++;
    }
}

int caut(int x)
{
    ///mai intai aflu rad arb din care e x
    int r=x,y;
    while(tata[r]!=r) r=tata[r];

    do
    {
        y=tata[x];
        tata[x]=r;
        x=y;
    }
    while(tata[x]!=r);

    return tata[x];
}

int main()
{
    int i, a, b, cer;
    fin>>n>>m;
    for(i=1; i<=n; i++)
    {
        tata[i]=i; h[i]=1;
    }
    for(i=1; i<=m; i++)
    {
        fin>>cer>>a>>b;
        if(cer==1)
            uni(caut(a), caut(b));
        else
        {
            if(caut(a)==caut(b))
                fout<<"DA"<<"\n";
            else
                fout<<"NU"<<"\n";
        }

    }

    return 0;
}