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