A Very Big Sum

import java.util.*;

public class Solution {
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        long sum = 0;
        for(int i = 0; i < n; i++){
            sum += in.nextLong();
        }
        System.out.println(sum);
    }
}