#include <iostream>
using namespace std;
int main(){
    
    int n;
    cin >> n;
    
    int zbir = 0;
    
    for(int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        
        zbir += x;
    }
    
    cout << zbir << endl;
    
    return 0;
}