#include<cstdio>
using namespace std;
int i, t, n, m, x, y;
int main(){
    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, &m, &x, &y);
        if ((x<=4)||(x+4>=n)||(y<=4)||(y+4>=m)) printf("DA\n");
            else printf("NU\n");
    }
    return 0;
}