#include<fstream> 
using namespace std; 
ifstream in("chatnoir.in"); 
ofstream out("chatnoir.out"); 
int main() 
{int t,n,m,x,y,sus,jos,stanga,dreapta,rez,min; 
in>>t; 
for(int i=1;i<=t;i++) 
{ 
	in>>n>>m>>x>>y; 
	sus=x-1; 
	jos=n-x; 
	stanga=y-1; 
	dreapta=m-y; 
	min=sus; 
	if(jos<min) min=jos; 
	if(stanga<min) min=stanga; 
	if(dreapta<min) min=dreapta; 
	if(min<=4) out<<"DA"<<'\n'; 
	else out<<"NU"<<'\n';
}
}