#include <bits/stdc++.h>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    vector<int> a(n), b(n);
    for (int &i : a) cin >> i;
    for (int &i : b) cin >> i;
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    for (int i = 0; i < n; i++) {
        if (a[i] > b[i]) {
            cout << "NE";
            return 0;
        }
    }   
    cout << "DA";
    return 0;
}
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