anchor.diff:  
   module Problem8 = type T = X
   
  -let string = "73167176531330624919225119674426574742355349194934"
  +let string = "73167176531330624919225119674426574742355349194934
  +96983520312774506326239578318016984801869478851843
  +85861560789112949495459501737958331952853208805511
  +12540698747158523863050715693290963295227443043557
  +66896648950445244523161731856403098711121722383113
  +62229893423380308135336276614282806444486645238749
  +30358907296290491560440772390713810515859307960866
  +70172427121883998797908792274921901699720888093776
  +65727333001053367881220235421809751254540594752243
  +52584907711670556013604839586446706324415722155397
  +53697817977846174064955149290862569321978468622482
  +83972241375657056057490261407972968652414535100474
  +82166370484403199890008895243450658541227588666881
  +16427171479924442928230863465674813919123162824586
  +17866458359124566529476545682848912883142607690042
  +24219022671055626321111109370544217506941658960408
  +07198403850962455444362981230987879927244284909188
  +84580156166097919133875499200524063689912560717606
  +05886116467109405077541002256983155200055935729725
  +71636269561882670428252483600823257530420752963450"
   
   let multiply list =
      let rec loop list acc =
  
positive.code:        else
            getMaxSeq(strAll,minNum+1,takeNum,accMax)
  
  let test = getMaxSeq(string,0,5,1.0)
  
  
  
negative.code:        | [] -> acc
     loop list 1.0
  
  //let num2 = string |> Seq.skip 3 |> Seq.take 5 |> Seq.map Char.GetNumericValue |> Seq.toList
  //let test1 = multiply num2
  
  //taken from http://stackoverflow.com/questions/20308875/remove-characters-from-string-in-f
  let stripv3 (stripChars:string) (text:string) =
      text.Split(stripChars.ToCharArray(), StringSplitOptions.RemoveEmptyEntries) |> String.Concat
  
  let stripChars = ""
  let stringStrip = stripv3 stripChars string
  let lenght2 = String.length stringStrip
  
  let rec getMaxSeq (strAll:string, minNum:int, takeNum:int, accMax:float) =
      let current = strAll |> Seq.skip minNum |> Seq.take takeNum |> Seq.map Char.GetNumericValue |> Seq.toList
      let currentVal = multiply current
      printfn "%f" accMax
      if minNum > (1000-minNum) then accMax
      else
         if
            currentVal > accMax then
  