/*
TASK:edi
LANG:C++
*/
#include<iostream>
using namespace std;
int main()
{int br1=0,br=0,a[1000],b,i;
int n;
cin>>n;
for(i=0;i<n;i++)
{cin>>a[i];
br1++;
br=br+a[i];
}

cout<<br/br1<<endl;

}
