Fib

open System
//(*mnogostrcny
//  koment*)

let rec fib = function
  | 0 -> 0
  | 1 -> 1
  | n -> fib (n-1) + fib (n-2)
  
let main argv = 
  printfn "fib_5: %i" (fib 5)
  0
  
//  printfn "Hello, World!"