#include<fstream>
#include<queue>
using namespace std;
int T,n,m,x,y;

int main()
{
	int t,dist;
	ifstream fin("chatnoir.in");
	ofstream fout("chatnoir.out");
	fin>>T;
	for(t=0;t<T;t++)
	{
		fin>>n>>m>>x>>y;
		dist=min(min(n-x,x-1),min(m-y,y-1));
		if(dist>=5)
			fout<<"NU\n";
		else
			fout<<"DA\n";
	}
	fin.close();
	fout.close();
	return 0;
}