#include<fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int N,M,i,j,parinte[100001],x,k,y;
int main()
{
    cin>>M>>N;
    for(i=1;i<=M;i++)
        parinte[i]=-1;
    for(i=1;i<=N;i++)
    {
        cin>>k>>x>>y;
        while(x[parinte]>0)
            x=x[parinte];
        while(y[parinte]>0)
            y=y[parinte];
        if(k==1)
        {
            if(x!=y)
            {
                if(x[parinte]>y[parinte])
                {
                    y[parinte]+=x[parinte];
                    x[parinte]=y;
                }
                else
                {
                    x[parinte]+=y[parinte];
                    y[parinte]=x;
                }
            }
        }
        else
        {
            if(x==y)
                cout<<"DA"<<'\n';
            else
                cout<<"NU"<<'\n';
        }
    }
    return 0;
}