n个数的和

#include<iostream>
using namespace std;
int main() {
    //1
    int n, sum = 0;
    cin >> n;
    for(int i = 0; i < n; i++) {
        int a;
        cin >> a;
        sum += a;
    }
    cout << sum;
    //2
    int n, sum = 0;
    cin >> n;
    int a[n + 3];
    for(int i = 0; i < n; i++) {
        cin >> a[i];
        sum += a[i];
    }
    cout << sum;
    return 0;
}