#include<iostream>
#include<fstream>
#include<vector>

using namespace std;
vector <int> v[1000001];
int ok,ind[100001],tata[100001];
ifstream f("disjoint.in");
ofstream g("disjoint.out");

int dfs(int nod1,int nod2)
{
    if(tata[nod1]==nod2) {ok=1;return 1;}
    else
        if(nod1!=tata[nod1])
        {dfs(tata[nod1],nod2);
        if(ok==1) return 1;}
    return 0;
}

int main()
{
    int n,m;
    f>>n>>m;
    for(int i=1;i<=n;i++) {v[i].push_back(i);tata[i]=i;}
    for(int i=1;i<=m;i++)
    {
        int cod,x,y;
        f>>cod>>x>>y;
        switch (cod)
    {
    case 1:
        if(y<x)
        tata[y]=x;
        else tata[x]=y;
        break;
    case 2:
        if(x>y) swap(x,y);
        ok=0;
        if(dfs(x,y)==1) g<<"DA\n";
        else g<<"NU\n";
        break;
    }
    }
    return 0;
}