#include <cstdio>
#include <iostream>

using namespace std;

FILE *fin = fopen("chatnoir.in", "r");
FILE *fout = fopen("chatnoir.out", "w");

int t, n, m, x, y;

int minim(int a, int b, int c, int d){
    return min(min(a, b) , min(c, d));
}

void escape(){
    int dist = minim(x, (n - x + 1), y, (m - y + 1));
    if(dist <= 5)
        fprintf(fout, "DA\n");
    else
        fprintf(fout, "NU\n");
}

int main()
{

    fscanf(fin, "%d", &t);
    for(int i = 1;i <= t;i++){
        fscanf(fin, "%d%d%d%d", &n ,&m, &x, &y);
        escape();
    }
    return 0;
}