using System;

class Program { static void Main() { int N = int.Parse(Console.ReadLine()); string[] inputLine = Console.ReadLine().Split(' '); int[] numbers = new int[N];

    for (int i = 0; i < N; i++)
    {
        numbers[i] = int.Parse(inputLine[i]);
    }

    int maxNum = numbers[0];
    int sum = 0;

    for (int i = 1; i < N; i++)
    {
        if (numbers[i] > maxNum)
        {
            sum += maxNum;
            maxNum = numbers[i];
        }
        else
        {
            sum += numbers[i];
        }
    }

    Console.WriteLine(sum);
}

}