Index: script/c0.lua
==================================================================
--- script/c0.lua
+++ script/c0.lua
@@ -9,11 +9,20 @@
 local cache_6
 local cache_7
 local cache_8
 local cache_9
 
+local _
+
+local coroutine = coroutine
+local debug = debug
+local io = io
 local math = math
+local os = os
+local package = package
+local string = string
+local table = table
 
 _G.fun = {}
 
 ---------------------------------