using System;

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = Console.ReadLine();
            string ans = "";
            string[] s1 = {"y","u","k","i","c","o","d","e","r" };
            for (int i = 0; i < s.Length; i++)
            {
                string b = s.Substring(i, 1);

                if ( b == "?" )
                {
                    ans = s1[i];               
                }
            }
            Console.WriteLine(ans);
        }
    }
}