I don't understand why i have an issue Traceback (most recent call last):
File "main.py", line 7, in 
if each == words[i]:
IndexError: string index out of range.

Thanks for your help.

```
text_final = []
text = "somewackyrunesatouristfound"
words = "secret"
i = 0
while i < len(words):
   for each in text:
     if each == words[i]:
       text_final.append(each.upper())
       i+=1
     else:
       text_final.append(each)

print(text_final)

```