Untitled

#include <iostream>

long long pigeon(int n) {

	int a;
	int i;
	long long sum = 0;
	for (i = 0; i < n; i++) {
		std::cin >> a;
		sum += a;
	}
	return sum;

}
int main() {
	int n;
	std::cin >> n;
	std::cout << pigeon(n);
}