#include<iostream>
#include<vector>
#include<numeric>
#include<iomanip>
using namespace std;
class statistics{
    public:
    double mean;
    statistics(): mean(0.0){}
    statistics(const std::vector<int>& data;){
        if (data.empty()){
            mean=0.0;
        }else{
            double sum=std::accumulate(data.begin(),data.end(),0.0);
            mean=sum/data.size();
        }
    }
    statistics(const statistics& other): mean(other.mean){
        
    }
};
int main;
{
    int n;
    if(!(std::cin>>n))return 0;
    if(n<0){
        std::cout<<"Invalid input"<<std::endl;
        return 0; 
    }
    std::vector<int>data(n);
    for(int i=0;i<n;++i){
        std::cin>>data[i];
    }
    statistics stats1(data);
    statistics stats2=stats1;
    std::cout<<std::fixed<<std::setprecision(0)<<stats2.mean<<std::endl;
    return 0;
}