local str = io.read()
local allsame = true
local all480 = true
local alleven = true
local all50 = true
local sum = 0
local first = tonumber(str:sub(1, 1))
local n = #str
for i = 1, n do
  local a = tonumber(str:sub(i, i))
  if a ~= first then
    allsame = false
  end
  if a % 4 ~= 0 then
    all480 = false
  end
  if a % 2 ~= 0 then
    alleven = false
  end
  if a % 5 ~= 0 then
    all50 = false
  end
  sum = sum + a
end

if allsame then
  print(str)
else
  local ret = 1
  if all480 then
    ret = ret * 4
  elseif alleven then
    ret = ret * 2
  end
  if all50 then
    ret = ret * 5
  end
  if sum % 9 == 0 then
    ret = ret * 9
  elseif sum % 3 == 0 then
    ret = ret * 3
  end
  print(ret)
end