#include<cstdio>

using namespace std;

int T,N,M,X,Y;


int main(){
	
	freopen("chatnoir.in","r",stdin);
	freopen("chatnoir.out","w",stdout);
	
	for(scanf("%d",&T);T;--T){
	
		scanf("%d%d%d%d",&N,&M,&X,&Y);
				
		if(X >= 6 && Y >= 6 && M-Y >= 5 && N-X >= 5)
				printf("NU\n");
		else printf("DA\n");
	}
	
return 0;
}