# Learn String Manipulation by Building a Cipher - Step 42

### Tell us what’s happening:

Describe your issue in detail here.
Im lost I dont know where to put the 26% or what modulo means

``````
# User Editable Region

text = 'Hello Zaira'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
encrypted_text = ''

for char in text.lower():
if char == ' ':
encrypted_text += char
else:
index = alphabet.find(char)
new_index = (index + shift) "26%"
encrypted_text += alphabet[new_index]
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 42

You appear to have created this post without editing the template. Please edit your post to Tell us what’s happening in your own words.

The % sign for modulo goes between two numbers.
Then, you’ll need to remove the quote marks from the number.
Make sure to place a space before and after the % sign.

Modulo returns the remainder after dividing two numbers.

Happy coding

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