using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Magatro
{
    static void Main()
    {
        string S = Console.ReadLine();
        int[] q = S.Split(new string[] { "ccw"},StringSplitOptions.None ).Select(s => s.Length).ToArray();
        Console.WriteLine(q.Min() + 1);
    }

}