using System;

public class Program

{

    public static void Main()

    {

        string str;

        Console.WriteLine("\nInput string");

        str = Console.ReadLine();

        Console.Write("\n" + IsWWW(str));

    }

    public static bool IsWWW(string str){

        if(str[0] == 'w')

            if(str.Substring(1, 2) == "ww") 

               return true;

        return false;

    }

}