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