#include <iostream>
int main() {
int n ,sum=0,avg=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];
}
for(int i=0;i<n;i++){
sum+=arr[i];
}
avg=sum/n;
std::cout<<avg<<std::endl;
return 0;
}