H = {}

def fill_hash(cs, str)
  if cs.size <= 0 then
    H[str] = true 
    return
  end

  cs_dup = cs.dup
  str_dup = str.dup
  str_dup << cs_dup.pop
  fill_hash(cs_dup, str_dup)

  str << cs.shift
  fill_hash(cs, str)
end

CS = gets.chomp.chars
fill_hash(CS, "")

puts H.size