using System;

public class Program

{

    public static void Main()

    {

        int n,sum=0;

        n=Convert.ToInt32(Console.ReadLine());

        int[] a=new int[100];

        for(int i=0;i<n;i++)

        {

            a[i]=Convert.ToInt32(Console.ReadLine());

        }

        foreach(int i in a)

        {

            sum=sum+i;

        }

        Console.Write(sum);

    }

}