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#!/usr/bin/env python
def is_palindrome(palindrome):
    if palindrome is None:
        return False
 
    palindrome = palindrome.strip()
    palindrome_length = len(palindrome)
    if palindrome_length == 0:
        return False
 
    i = 0
    j = palindrome_length - 1
 
 
    while ( i < j ):
        while ( i < j and palindrome[i] == ' ' ):
            i += 1
        while ( j > i and palindrome[j] == ' ' ):
            j -= 1
 
        if (palindrome[i] != palindrome[j]):
            return False
 
        i += 1
        j -= 1
 
    return True
 
if (__name__ == '__main__'):
    palindrome = raw_input()
    if is_palindrome(palindrome):
        print "{0} is a palindrome".format(palindrome)
    else:
        print "{0} is not a palindrome".format(palindrome)