diff --git a/main/1-99/2B_test.go b/main/1-99/2B_test.go
index e2e5248da6..6516bf1dea 100644
--- a/main/1-99/2B_test.go
+++ b/main/1-99/2B_test.go
@@ -15,6 +15,14 @@ inputCopy
 7 8 9
 outputCopy
 0
-DDRR`
+RRDD
+inputCopy
+3
+10 10 10
+0 10 10
+10 10 10
+outputCopy
+1
+DRRD`
 	testutil.AssertEqualCase(t, rawText, 0, CF2B)
 }