#include <iostream>
using namespace std;
const int MAX_SIZE = 10;
int main() {
int n, v[MAX_SIZE + 1];
cin >> n;
int flag = 1;
for (int i = 1; i <= n * 2; ++i) {
if (i <= n) {
cin >> v[i];
} else {
int currentEl;
cin >> currentEl;
if (v[i - n] == currentEl) {
flag = 0;
}
}
}
if (flag == 0) {
cout << "NU";
} else {
cout << "DA";
}
return 0;
}
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