Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 def hide_message(reg,sec):
     out = reg + " " + ''.join(chr(0xE0000 + ord(ch)) for ch in sec)
-    for ea in range(len(out)):
+    for ea in out:
         print(ea)
         if ea.startswith(r"\U000e"):
             new_ea = ea.split(r"\U000e")[1]