diff -r bd9d142d2cd8 -r 5c57c407e27b testing5/bf_test4.scala
--- a/testing5/bf_test4.scala	Wed Oct 30 11:51:02 2019 +0000
+++ b/testing5/bf_test4.scala	Wed Oct 30 12:37:18 2019 +0000
@@ -1,3 +1,4 @@
+import CW10a._
 
 assert(run("[-]", Map(0 -> 100)) == Map(0 -> 0))
 assert(run("[->+<]", Map(0 -> 10)) == Map(0 -> 0, 1 -> 10))