local str = io.read()
local n = #str
local tot = 2^(n-1)-1
local strlist = {}
for i = 0, tot do
  local it = i
  local lcnt, rcnt = 0, 0
  local retstr = ""
  for j = 1, n - 1 do
    if(it % 2 == 0) then
      lcnt = lcnt + 1
      retstr = retstr .. str:sub(lcnt, lcnt)
    else
      it = it - 1
      rcnt = rcnt + 1
      retstr = retstr .. str:sub(n + 1 - rcnt, n + 1 - rcnt)
    end
    it = it / 2
  end
  retstr = retstr .. str:sub(lcnt + 1, lcnt + 1)
  strlist[retstr] = true
end
local cnt = 0
for k, v in pairs(strlist) do
  cnt = cnt + 1
end
print(cnt)