diff --git a/batch-demo/a.txt b/batch-demo/a.txt
new file mode 100644
index 0000000..7ee209f
--- /dev/null
+++ b/batch-demo/a.txt
@@ -0,0 +1 @@
+file a
\ No newline at end of file
diff --git a/batch-demo/b.txt b/batch-demo/b.txt
new file mode 100644
index 0000000..8d776cf
--- /dev/null
+++ b/batch-demo/b.txt
@@ -0,0 +1 @@
+file b
\ No newline at end of file