# Learn String Manipulation by Building a Cipher - Step 36

### Tell us what’s happening:

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``````text = 'Hello World'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''

/* User Editable Region */

for char in text.lower():
index = alphabet.find(char)
new_index = index + shift
b = alphabet[new_index]
encrypted_text = a+=b
print('char:', char, 'encrypted text:', encrypted_text)

/* User Editable Region */

``````

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36`

### Challenge Information:

Learn String Manipulation by Building a Cipher - Step 36

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Have a look at the example again

``````a = a + b

a += b
``````

Transform this line in the same way. The `a` and `b` variables are just examples, don’t use those.

``````encrypted_text = encrypted_text + alphabet[new_index]
``````
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Thanks bro, I was over complicating the whole thing lmao cheers….

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