A palindrome is a sequence of characters that reads the same backward as forward. For example, each of the following 3-digit integers is a palindrome: 131, 555, 454 and161.Write an app that reads in a...

A palindrome is a sequence of characters that reads the same backward as forward. For example,

each of the following 3-digit integers is a palindrome: 131, 555, 454 and161.Write an app that reads
in a 3-digit integer and determines whether it’s a palindrome. If the number is not 3 digits long,
display an error message and allow the user to enter a new value.