Check if a given string is Palindrome
A Palindrome is defined as a phrase or a number which when reversed also gives the same phrase or number. For example, the word abcdcba is a palindrome because even when you read the string from end to the beginning you'll get the same string as the original. Some real words such as malayalam, madam, refer, reviver, noon, mom and such are all palindromes in general use.
