
def solve(s):
  t = 'keyence'
  if t in s[0:7] or t in s[-7:]:
    return 'YES'

  p = 0
  for i in range(len(s)):
    if t[p] == s[i]:
      p = p + 1
    else:
      if t[p:] in s[-p:]:
        return 'YES'
      else:
        return 'NO'
  return 'NO'

print(solve(input()))