#include <fstream>
using namespace std;
int i,n,m,x,y;
int main ()
{
ifstream f("chatnoir.in");
ofstream g("chatnoir.out");
	f>>n;
	for (i=1;i<=n;i++)
	{
		f>>n>>m>>x>>y;
		if (x<6 || x>n-5 || y<6 || y>m-5) 
			g<<"DA\n"; 
		else 
			g<<"NU\n";
	}
f.close();
g.close();
	return 0;
}