S = gets.chomp
key = "keyence"
ok_flag = false
6.times do |i|
  a = key[0,i+1]
  b = key[i+1,6]
  #puts "i=#{i} a=#{a} b=#{b}"
  apos = S.index(a)
  bpos = S.index(b)
  if apos!=nil && bpos!=nil && apos < bpos then
    #puts "YES"
    ok_flag = true
    break
  end
end

if ok_flag then
  puts "YES"
else
  puts "NO"
end
