diff --git a/random.regex b/random.regex
new file mode 100644
index 0000000..cd394ba
--- /dev/null
+++ b/random.regex
@@ -0,0 +1,2 @@
+/^[0-9][0-9][0-9][0-9]-ch[0-9]-v[0-9][0-9].*\..*/
+/^us[0-9][0-9][0-9]-v[0-9][0-9][0-9].*\..*/
\ No newline at end of file