#include<fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int a[100001];
int main()
{
    int n,m;
    for(cin>>n>>m;m--;) {
        int i,j,k;
        for(cin>>i>>j>>k;a[j];j=a[j]);
        for(;a[k];k=a[k]);
        if(i>1)
            cout<<(j==k?"DA\n":"NU\n");
        else
            a[k]=j;
    }
    return 0;
}