// -*- mode: java -*-
// $Id: fibo.njs,v 1.1 2001/07/08 20:20:06 doug Exp $
// http://www.bagley.org/~doug/shootout/
// by David Hedbor <david@hedbor.org>
// modified by Aldo Calpini <dada@perl.it> for Win32

function fib(n) {
    if (n < 2) return 1;
    return fib(n-2) + fib(n-1);
}

var n;
ARGS = WScript.Arguments;
if(ARGS.length > 0) {
  n = parseInt(ARGS.Item(0), "10");
  if(n < 1) n = 1;
} else {   
  n = 1;
}
WScript.Echo(fib(n));