using System;

namespace No346
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = 0;
            string word = "cww";
            string text = Console.ReadLine();

            for (int i = 0; i < text.Length; i++)
            {
                if (text[i] == word[0])
                {
                    for (int j = i + 1; j < text.Length; j++)
                    {
                        if (text[j] == word[1])
                        {
                            for (int k = j + 1; k < text.Length; k++)
                                if (text[k] == word[2])
                                    num++;
                        }
                    }
                }
            }

            Console.WriteLine(num);
        }
    }
}