#include<fstream>
using namespace std;
ifstream f("chatnoir.in");
ofstream g("chatnoir.out");
int x,y,i,n,m,k;
int main()
{
	f>>k;
	for(i=1;i<=k;++i)
	{
		f>>n>>m>>x>>y;
		if(x<=5||y<=5||x>=n-4||y>=m-4)
			g<<"DA\n";
		else
			g<<"NU\n";
	}
	return 0;
}