#include<bits/stdc++.h>
using namespace std;
using s=string;

long long sum(){
    int N;
    cin >> N;
    long long Sum = 0;
    for(int i=0;i<N;i++){
        long long a;
        cin >> a;
        Sum += a;
    }

    cout << Sum << endl;
}
int main(){
    sum();

    
    /*
    vector<vector<string>> ans(6);
    for(int i=1;i<=A;i++){
        if(i%15 == 0) ans[0].push_back("FizzBuzz\n");
        else if(i%5 == 0) ans[0].push_back("Buzz\n");
        else if(i%3 == 0) ans[0].push_back("Fizz\n");
        else ans[0].push_back(to_string(i) + '\n');  
    }
    ans[1].push_back("Hello World\n");
    ans[2].push_back(to_string(A*(A+1)/2));
    ans[3].push_back(to_string(A+B) + " "  + S);


    for(auto s : ans[0]) cout << s;
    */

}