#include <bits/stdc++.h>
#define ve vector<int>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define pi pair<int,int>
#define all(v) v.begin(),v.end()
#define si(v) (int)v.size()
#define en '\n'
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
const int N = 1e4 + 228;
const int big = 1e9;
int n;
int main(){
iostream::sync_with_stdio(false); cin.tie(0); ios_base::sync_with_stdio(false); cout.tie(0);
//freopen("input.txt","r",stdin);
//freopen("output.txt","w",stdout);
cin >> n;
for (int i = 1; i <= n; i++){
ull l1, r1, l2, r2;
cin >> l1 >> r1 >> l2 >> r2;
ull sm1 = 1ll;
ull sm2 = 1ll;
for (ull j = l1; j <= r1; j++) sm1 *= j;
for (ull j = l2; j <= r2; j++) sm2 = (sm2 * j) % sm1;
if (sm2 == 0ll) cout << "DA\n"; else cout << "NE\n";
}
return 0;
}
