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+(***********************************************************************)
+(* *)
+(* Objective Caml *)
+(* *)
+(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
+(* *)
+(* Copyright 1996 Institut National de Recherche en Informatique et *)
+(* en Automatique. All rights reserved. This file is distributed *)
+(* under the terms of the Q Public License version 1.0. *)
+(* *)
+(***********************************************************************)
+
+(* $Id: fib.ml 7017 2005-08-12 09:22:04Z xleroy $ *)
+
+let rec fib n =
+ if n < 2 then 1 else fib(n-1) + fib(n-2)
+
+let _ =
+ let n =
+ if Array.length Sys.argv >= 2
+ then int_of_string Sys.argv.(1)
+ else 40 in
+ print_int(fib n); print_newline(); exit 0
+