anchor.diff:  open MBrace.Runtime
   open GLL.shift_problem
   //open MBrace.Azure.Management
  +
  +let lockArray = new ResizeArray<int>()
   
   type WhatShouldISearch =
       | TRNA
  
positive.code:     |> Array.iteri 
          (fun i graph -> 
              Data (i, graph) 
              |> agents.[i % agentsCount].Post
          )
      agents |> Array.iter (fun a -> a.PostAndReply Die)
      printfn "Total time = %A" (System.DateTime.Now - start)
  
negative.code:                 |> Seq.collect (fun line -> let header = info + (!index).ToString()
                                              index := !index + 1
                                              header::(splitLine line))
              lock lockArray (fun () -> File.AppendAllLines(resultPath, toPrint))
              isPrinted := true
          res
          |> Seq.iteri printResult
  