#include <cstdio>

inline int min(int x,int y){if (x<y) return x;else return y;}

int main()
{
    int t,n,m,x,y;
    freopen("chatnoir.in","r",stdin);
    freopen("chatnoir.out","w",stdout);
    scanf("%d",&t);
    for (;t;--t)
    {
        scanf("%d%d%d%d",&n,&m,&x,&y);
        if (min(min(n-x+1,x),min(m-y+1,y))>=6)
            printf("NU\n");
        else
            printf("DA\n");
    }
    return 0;
}