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