diff -r 80102fba0a93 -r 0ab369f53ac1 marking3/knight1_test4.scala
--- a/marking3/knight1_test4.scala	Sun Dec 09 01:36:49 2018 +0000
+++ b/marking3/knight1_test4.scala	Mon Dec 10 02:23:30 2018 +0000
@@ -1,5 +1,5 @@
 
 val f = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None
 
-assert(CW7b.first(List((1,0),(2,0),(3,0),(4,0)), f) == Some(List((4,0))))
-assert(CW7b.first(List((1,0),(2,0),(3,0)), f) == None)
+assert(first(List((1,0),(2,0),(3,0),(4,0)), f) == Some(List((4,0))))
+assert(first(List((1,0),(2,0),(3,0)), f) == None)