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