#include <iostream>
using namespace std;

int SumArray(int a[], int n, int x) {
	if (n == 0) {
		return 0;
	} else {
		return a[x - n] + SumArray(a, n - 1, x);
	}
}

int main() {
	int a[50], n;
	cout << "请输入数组中数的个数：";
	cin >> n;
	cout << "请向数组输入：";

	for (int i = 0; i < n; i++) {

		cin >> a[i];
	}

	cout << "数组的和为：" ;
	cout << SumArray(a, n, n);
	return 0;
}