#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>
#include <map>
#define mems(x, v) memset(x, v, sizeof x)
#define mcpy(x, y) memcpy(x, y, sizeof x)
using namespace std;
typedef pair <int, int> pii;
typedef long long ll;
typedef unsigned long long ull;
typedef long double wisdom;

map <int, int> cnt;
int main() {
	int n; scanf("%d", &n);
	for (int i = 1, x; i <= n; i++) scanf("%d", &x), cnt[x]++;
	for (auto [x, y] : cnt) if (y & 1) return puts("Donkey"), 0; puts("Puss in Boots");
	return 0;
}