•  In python, to lower is used to convert the uppercase letters to lower case.
• It uses the function called lower().
• It doesn't have any parameters.
• The string must be enclosed with single or double-quotes.
• If the string does not contain any upper case letters then it returns the same string.

Example: s="HELLO"

             str.lower(s)=hello

#write a python code to demonstrate the lower() function.