#include <bits/stdc++.h>
using namespace std;
const int N = 1e4;
int a[N];
int main()
{
int n;
cin >> n;
int res = 0;
for (int i = 0; i < n; i ++ )
{
scanf("%d", &a[i]);
res += a[i];
}
sort(a, a + n);
cout << a[n - 1] << endl;
cout << a[0] << endl;
printf("%.2f", res * 1.0 / n);
return 0;
}