# Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 35

### Tell us what’s happening:

I am not able to this can someone help me plz I have been trying but notable to do

``````
# User Editable Region

def verify_something_valid(something_valid):
sum_of_odd_digits = 0
something_valid_reversed = something_valid[::-1]
odd_digits = something_valid_reversed[::2]

for digit in odd_digits:
sum_of_odd_digits += int(digit)

sum_of_even_digits = 0
even_digits = something_valid_reversed[1::2]
for digit in even_digits:
number = int(digit) * 2
if number >= 10:
number = (number // 10) + (number % 10)
sum_of_even_digits += number
total = sum_of_odd_digits + sum_of_even_digits

def main():
card_number = '4111-1111-4555-1141'
card_translation = str.maketrans({'-': '', ' ': ''})
translated_something_valid = something_valid.translate(card_translation)

if verify_something_valid(translated_something_valid):
print('VALID!')
else:
print('INVALID!')

main()

# User Editable Region

``````

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36`

### Challenge Information:

Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 35

As a final step, remove the `print` call from the `verify_card_number` function, and change the `card_number` back to something valid.

The instructions may not have been clear.
The function and variable names are to stay the same.

Change the value in `card_number`

You correctly removed the `print` call.

Happy coding

I am not able to do this can you give me solutions plz

Nope, that’s not what the forum is for. If you have a question that you can ask about anything that’s confusing, feel free to ask and we will help.