#include <iostream>
int main() {
int n;
int sum=0;
std::cin >> n;
if (n < 1) {
return 0;
}
// Write your dynamic buffer allocation code here
int * arr = new int[n];
for(int i=0;i<n;i++){
std::cin>>arr[i];
sum+=arr[i];
}
sum /= n;
std::cout<<sum;
delete[] arr;
return 0;
}