#include <cstdio>
#include <iostream>
using namespace std;

int main()
{
	int m,n,l,c,t,i;
	freopen("chatnoir.in","r", stdin);
	freopen("chatnoir.out","w", stdout);
	scanf("%d",&t);
	for(i=1;i<=t;i++)
	{
		scanf("%d %d %d %d\n",&n,&m,&l,&c);
//<<n<<" "<<m<<" "<<l<<" "<<c<<endl;
		if(n-l<6 || m-c<6 || l<6 || c<6	) cout<<"DA\n";
		else cout<<"NU\n";
		
		
	}
	return 0;
}