diff --git a/a.go b/a.go
new file mode 100644
index 0000000000000000000000000000000000000000..d63f93ea49151ebcba21c23f2429ac04619dc15c
--- /dev/null
+++ b/a.go
@@ -0,0 +1 @@
+package a
\ No newline at end of file
diff --git a/b.go b/b.go
new file mode 100644
index 0000000000000000000000000000000000000000..649285b89315d88a1bd5b1d25df5fa3ce6708202
--- /dev/null
+++ b/b.go
@@ -0,0 +1 @@
+package b
\ No newline at end of file