using System;
using System.Collections.Generic;

public class InputStrorage
{
    public long N;
    public long[] Array;
}

public static class InputHandler
{
    public static void ReadInput(InputStrorage input)
    {
        string[] str = Console.ReadLine().Split();
        input.N = int.Parse(str[0]);
        input.Array = new long[input.N];
        
        str = Console.ReadLine().Split();
        for (int i = 0; i < input.N; i++)
        {
            input.Array[i] = long.Parse(str[i]);
        }
     }
}

namespace GeneralLibs
{
    public class Compare
    {
        public static long ReturnMax(long a, long b)
        {
            if (a > b) return a;
            else return b;
        }

        public static long ReturnMax(long[] a)
        {
            long max = long.MinValue;
            for (int i = 0; i < a.Length; i++)
            {
                if (a[i] > max) max = a[i];
            }
            return max;
        }
    }

    public class ShowValues
    {
        public static void ShowArray1D(long[] a, string str = "default")
        {
            Console.WriteLine(str);
            for (int i = 0; i < a.Length; i++)
            {
                Console.Write("{0} ", a[i]);
            }
            Console.WriteLine();
            Console.WriteLine(str);
        }

        public static void ShowValue(long a, string str = "default")
        {
            Console.WriteLine("{0} : {1}", a, str);
        }

    }
}

public class SpecificLibs
{

}

static class No9008
{
    static void Main()
    {
        InputStrorage input = new InputStrorage();
        InputHandler.ReadInput(input);

        long ans = 0;
        for(int i = 0; i < input.N; i++)
        {
            ans += input.Array[i];
        }

        Console.WriteLine(ans);

    }
}