Why last line doesn't work

Question

https://code.sololearn.com/c77yGzd2o7ec/?ref=app

Answer 1

Use {} instead of []
format() method is being dominated by f-strings in python 3.6+
Instead of '{}'.format(some_variable), you can simply write: f'{some_variable}'

Answer 2

Yeah!! What he said was crt.. Use like...
print("Even:{} and odd:{}".format(even, odd))
You'll get crt output.. 👍

Answer 3

replace [ ] braces with {} braces