#include <iostream>
#include <fstream>
#include <cmath>
#include <ctime>
using namespace std;
ifstream f("sate2.in");
ofstream g("sate2.out");
int main()
{
    srand(time(NULL));
    int N,M,K,T,i,x,j;
    f>>T;
    for(i=1;i<=T;i++)
    {
        f>>N>>M>>K;
        for(j=1;j<=N;j++) f>>x;
        x=rand()%2;
        if(x==0) g<<"DA\n";
        else g<<"NU\n";
    }
    return 0;
}