#include<stdio.h>
	FILE *f , *g ;
	int x , y , m , n ;
	long t;
	
	int min(int a , int b , int  c , int d);
	
	int main()
	{
		f=fopen("chatnoir.in" , "r" );
		g=fopen("chatnoir.out" , "w");
		fscanf(f , "%ld" , &t);
		for ( long i = 1 ; i  <= t ; ++i )
		{
			fscanf(f , "%d%d%d%d" , &n , &m , &x  ,&y );
			if(min(x-1,y-1,n-x,m-y) < 5)
				fprintf(g ,"DA\n");
			else
				fprintf(g , "NU\n");
		}
		fclose(f);
		fclose(g);
		return 0;
	}
	
	int min(int a , int b , int c , int d )
	{
		int minn = 101;
		if(a < minn)
			minn = a;
		if(minn > b)
			minn = b;
		if(minn > c)
			minn = c;
		if(minn > d)
			minn = d;
		return minn;
	}