--- a/progs/fib.while	Thu Nov 28 12:51:01 2013 +0000
+++ b/progs/fib.while	Fri Nov 29 09:01:08 2013 +0000
@@ -2,8 +2,8 @@
    input: n
 */
 write "Fib";
-//read n;
-n := 19;
+read n;
+//n := 19;
 minus1 := 0;
 minus2 := 1;
 while n > 0 do {