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