diff -r 1aec0e1fda86 -r 1cef3924f7a2 progs/catastrophic.java
--- a/progs/catastrophic.java	Sun Aug 21 18:15:53 2016 +0200
+++ b/progs/catastrophic.java	Mon Aug 22 09:12:03 2016 +0200
@@ -7,20 +7,20 @@
             //Pattern pattern = Pattern.compile("a?{20}a{20}");
 
             // Run from 5 to 25 characters
-            for (int length = 5; length < 25; length++) {
-                Pattern pattern = Pattern.compile("(0*)*A");
+            for (int length = 5; length < 30; length++) {
+                Pattern pattern = Pattern.compile("(a*)*b");
                 // Build input of specified length
                 String input = "";
-                for (int i = 0; i < length; i++) { input += "0"; }
+                for (int i = 0; i < length; i++) { input += "a"; }
                 
                 // Measure the average duration of two calls...  
                 long start = System.nanoTime();
                 for (int i = 0; i < 2; i++) {
                     pattern.matcher(input).find();
                 }
-                System.out.println(input + ": " 
-                       + ((System.nanoTime() - start) / 2000000d) 
-                       + "ms");
+                System.out.println(length + " " + input + ": " 
+                       + ((System.nanoTime() - start) / 2000000000d) 
+                       + "s");
             }
         }
     }