String user$\_$entry is read from input with leading and trailing whitespaces. Remove any leading and trailing whitespaces in the string. If user$\_$entry contains the string 'Class:$\text{'},$ capitalize all the characters in user$\_$entry. Otherwise, lowercase all the characters in user$\_$entry. Finally, print out the resulting string.

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Ex $1$: If the input is:

Class: Microbiology

then the output is:

CLASS: MICROBIOLOGY

Ex $2$: If the input is:

Creative writing

then the output is:

creative writing