#include <fstream>
using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

int rg[100002];
int t[100002];

int rad(int x)
{
    int r,y;
    r=x;
    while(r!=t[r])
        r=t[r];
    while(x!=t[x])
    {
        y=t[x];
        t[x]=r;
        x=t[x];
    }
    return r;
}

void unire(int a,int b)
{
    if(rg[a]>rg[b])
        t[b]=t[a];
    else
        t[a]=t[b];
    if(rg[a]==rg[b])
        rg[b]++;
}

int main()
{
    int n,x,y,c,m;
    fin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        t[i]=i;
        rg[i]=1;
    }
    for(int i=1;i<=m;i++)
    {
        fin>>c>>x>>y;
        int rx=rad(x);
        int ry=rad(y);
        if(c==1)
        {
            unire(rx,ry);
        }
        else
        {
            if(rx==ry)
            {
                fout<<"DA\n";
            }
            else
                fout<<"NU\n";
        }
    }
    return 0;
}