Please tell me what is wrong in this solution of the code coach problem "Balconies"

Question

I just learned lambda functions so I tried to use them here
But it throws Value Error -"invalid literal for int() with base 10 : ',' "
https://code.sololearn.com/ceEFzu7PRSZF/?ref=app

Answer 1

https://code.sololearn.com/ciKRJ6PHTLOH/?ref=app

The issue is your use of the list() function, which is creating lists of all characters in the input. See the updated code for possible solutions.

Answer 2

Jeremy Miller very very thanks for the help brother
Now I can fully understand my mistake and have some clearance in the topic