题解

#include <iostream>  
using namespace std;  
int main() {  
    int n; 
    cin >> n; 
    int sum = 0;  
    for (int i = 0; i < n; i++) { 
        int num; 
        cin >> num; 
        sum += num; 
    }  
    cout << sum << endl; 
    return 0;  
}