diff -r 350d4364f6f9 -r 07780accd5df progs/roman.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/progs/roman.scala	Wed Jan 25 01:25:17 2017 +0000
@@ -0,0 +1,8 @@
+abstract class RomanDigit 
+case object I extends RomanDigit 
+case object V extends RomanDigit 
+case object X extends RomanDigit 
+case object L extends RomanDigit 
+case object C extends RomanDigit 
+case object D extends RomanDigit 
+case object M extends RomanDigit