let s = read_line ()

let k = "keyence"

let s_len = String.length s

let rec loop si ki r =
  if si = s_len then
  print_string @@ if ki = 7 then "YES" else "NO"
  else if ki = 7 then
    print_string @@ if si = s_len then "YES" else "NO"
  else
    if s.[si] = k.[ki] then
      loop (si + 1) (ki + 1) r
    else if r = 0 then print_string "NO"
    else
      let rec f i = if i = s_len then -1 else if s.[i] = k.[ki] then i else f (i + 1) in
      let ni = f si in
      if ni = -1 then print_string "NO"
      else loop (ni + 1) (ki + 1) 0

let () = loop 0 0 1