#include <iostream>
#include <fstream>

using namespace std;

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

int n, m, cod, x, y, v[100041];

void uni(int x, int y)
{
    if (v[y]==0&&v[x]==0)
        v[y]=x;
    else if (v[y]==0&&v[x]!=0)
        v[y]=v[x];
    else if (v[y]!=0&&v[x]==0)
        v[v[y]]=x;
    else if (v[y]!=0&&v[x]!=0)
        v[v[y]]=v[x];
}
void compress()
{
    for (int i=1;i<=n;++i)
    {
        if (v[i]!=0&&v[v[i]]!=0)
            v[i]=v[v[i]];
       // cout << v[i] << " ";
    }
}
void check(int x, int y)
{
    if ((v[x]==v[y]||v[x]==y||x==v[y])&&(v[x]!=0||v[y]!=0))
        fout << "DA\n";
    else
        fout << "NU\n";
}

void read()
{
    fin >> n >> m;
    for (int i=0;i<m;++i)
    {
        fin >> cod >> x >> y;
        if (cod==1)
            uni(x,y);
        else
        {
            compress();
            check(x,y);
        }
    }
}

int main()
{
    read();

    return 0;
}