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