#include <fstream>
using namespace std;
ifstream f("chatnoir.in");
ofstream g("chatnoir.out");
int n,i,l,L,x,y,mi;
int main()
{
    f >> n;
    for(i = 1; i <= n; ++i)
    {
        f >> l >> L >> x >> y;
        if(L - y < l - x)
            mi = L - y;
        else
            mi = l - x;
        if(mi >= 5)
            g << "NU" << '\n';
        else
            g << "DA" << '\n';
    }
    return 0;
}