using System;
using static System.Console;

namespace B
{
  class Program
  {
    static void Main(string[] args)
    {
      string input = ReadLine();

      string keystr = "keyence";

      bool flag = false;
      
      int allidx = input.IndexOf(keystr);
      if(allidx != -1)
        if(allidx == 0 || allidx == input.Length-7)
          flag = true;

      for(int i = 1; i<6 && !flag; i++) {
        string frontstr = keystr.Substring(0, i);
        string backstr = keystr.Substring(i, 7-i);
        int frontidx = input.IndexOf(frontstr);
        if(frontidx != 0) continue;
        int backidx = input.LastIndexOf(backstr);
        if(backidx != input.Length-(7-i)) continue;
        flag = true;
        break;
      }

      WriteLine(flag ? "YES" : "NO");
      Read();
    }
  }
}