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

namespace AtCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            var S = Console.ReadLine();
            for(var i =0; i<S.Length; i++)
            {
                for(var j=0; j<S.Length-i; j++)
                {
                    var sub1 = S.Substring(i, j);
                    for(var k=0; k<S.Length-i-j; k++)
                    {
                        var sub2 = S.Substring(i+j+k, S.Length - i - j - k);
                        if(sub1+sub2=="keyence")
                        {
                            Console.WriteLine("YES");
                            return;
                        }
                    }
                }
            }
            Console.WriteLine("NO");
        }

    }
}
//A