# Learn String Manipulation by Building a Cipher - Step 16

### Tell us what’s happening:

Describe your issue in detail here.

``````
# User Editable Region

text = 'Hello World'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
index = alphabet.find(text[0].lower())
print(index)
shifted = alphabet.index("h") + shift

# User Editable Region

``````

i got no clue what to put

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 16

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Hi there and welcome to our community!

Declare a variable named `shifted` and assign it the `alphabet` letter at `index` plus `shift` .

You should be using square bracket notation to find any particular letter in the `alphabet` string.

For instance `alphabet[0]` is ‘a’ and `alphabet[25]` is ‘z’.
You could also put a variable inside the square brackets.
EXAMPLE:

``````alphabet = 'abcdefghijklmnopqrstuvwxyz'
number = 1
print(alphabet[number])
# would print 'b'
``````

You can even evaluate an expression inside the square brackets, such as adding the values of two variables together… (such and `index` and `shift`).

Hopefully this will lead you to the solution!

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