#include <fstream>
#include <algorithm>
#include <vector>
#include <cstring>
#include <map>
#include <iomanip>
#include <set>
#define x first
#define y second
using namespace std;
ifstream f("disjoint.in");
ofstream g("disjoint.out");
const int MAXN = 100010;
const int INF = 2000000000;
int n, m, sol,i,j,a,b,op;
int p[MAXN],nr[MAXN];
int parinte(int x)
{
    if(p[x]==x)
        return x;
    return parinte(p[x]);
}
int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
        p[i]=i,nr[i]=1;
    while(m)
    {
        m--;
        f>>op>>a>>b;
        if(op==1)
        {
            int x,y;
            x=parinte(a);y=parinte(b);
            if(nr[x]>nr[y])
                nr[x]++,p[x]=y;
            else
                nr[y]++,p[y]=x;
        }
        else
            if(parinte(a)==parinte(b))
                g<<"DA"<<'\n';
            else
                g<<"NU"<<'\n';
    }
    return 0;
}