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