#include <bits/stdc++.h>

using namespace std;
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int par[100001];
int parinte(int x)
{
    if (par[x]==x) return x;
    else return par[x]=parinte(par[x]);
}
int main()
{
    int n,m;
    fin >>n>>m;
    for (int i=1;i<=n;i++) par[i]=i;
    for (int i=1;i<=m;i++)
    {
        int x,y;
        int intr;
        fin >>intr;
        fin >>x>>y;
        if (intr==1)
        {
            par[x]=parinte(y);
        }
        else
        {
            if (parinte(x)==parinte(y)) fout << "DA\n";
            else fout << "NU\n";
        }
    }
}