#include <iostream>
int main() {
// using namespace std;
int n;
std::cin >> n;
if(n >= 1){
int* arr = new int[n];
if(arr == nullptr){
std::cout << "ERROR";
return -1;
}
int sum = 0;
for(int i = 0; i < n; i++){
std::cin >> arr[i];
sum += arr[i];
}
int avg = sum / n;
std::cout << avg;
delete[] arr;
}
return 0;
}