Question: 4. Write a function that tests if a given string is a palindrome. Write a function countUp() that returns the number of upper case letters

4. Write a function that tests if a given string is

4. Write a function that tests if a given string is a palindrome. Write a function countUp() that returns the number of upper case letters in a given string. Write a function upLow() that returns a new string made by converting all upper case letters to lower and lower case letters to upper in a given string

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