#include <stdio.h>
#define FI fopen("chatnoir.in","r")
#define FO fopen("chatnoir.out","w")
 
long t,n,m,x,y;
char mark;
FILE *fi,*fo;
 
int main() {
    fi=FI;
    fo=FO;
    fscanf(fi,"%li",&t);
    while(t--) {
        mark=0;
        fscanf(fi,"%i%i%i%i",&n,&m,&x,&y);
        if(x<=5 || x>=n-4 || y<=5 || y>=m-4)
            fprintf(fo,"DA\n");
        else
            fprintf(fo,"NU\n");
    }
    return 0;
}