using System;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            var s = Console.ReadLine();
            var count = MakeCww(s)
                .Where(x => x == "cww")
                .Count();
            Console.WriteLine(count);
        }

        static IEnumerable<string> MakeCww(string s)
        {
            foreach (var a in s.Select((x, i) => new { Index = i, Value = x }))
            {
                foreach (var b in s.Where((_, i) => i != a.Index).Select((x, i) => new { Index = i, Value = x }).Skip(a.Index))
                {
                    foreach (var c in s.Where((_, i) => i != a.Index && i != b.Index).Skip(b.Index))
                    {
                        yield return $"{a.Value}{b.Value}{c}";
                    }
                }
            }
        }
    }
}