anchor.diff:          new Cell(newBestTrace, x', y')
       
       /// Primitive function for calculating the max cell in a matrix.
  -    let indexOfMaxInMatrix (matrix:(Cell)[,]) =
  +    let private indexOfMaxInMatrix (matrix:(Cell)[,]) =
           let mutable val_best = 0
           let mutable i_best = 0
           let mutable j_best = 0
  
positive.code: 
              let intConversion chars = chars |> List.toArray |> intsToChars |> implode
  
              (a1 |> intConversion, a2 |> intConversion)
negative.code: 
              matrix
  
      module SmithWaterman =
          let run (fstSeq:string) (sndSeq:string) =
              let fstSeqPrim = fstSeq |> stringToCharInts
              let sndSeqPrim = sndSeq |> stringToCharInts
  