diff -r 6f7ec7c531e9 -r 41a2b4f2c30c progs/hello-world.scala
--- a/progs/hello-world.scala	Fri Nov 10 09:23:23 2017 +0000
+++ b/progs/hello-world.scala	Tue Nov 14 13:14:47 2017 +0000
@@ -1,3 +1,5 @@
 object Hello extends App { 
+  val y = 42
+  val foo = (1 to 10).toList
   println("hello world")
 }