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