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