
    In a delivery fleet management system, given a current route identifier number, find the next available palindromic route number that can be assigned to a delivery vehicle. A palindromic route number reads the same forwards and backwards, and the system must always assign the smallest possible palindrome that is greater than the current route identifier.
    

    
import sys

def next_smallest_palindrome(num):
    """
    In a delivery fleet management system, given a current route identifier number, find the next available palindromic route number that can be assigned to a delivery vehicle. A palindromic route number reads the same forwards and backwards, and the system must always assign the smallest possible palindrome that is greater than the current route identifier.
    

    """
import sys

def next_smallest_palindrome(num):
    """
    In a delivery fleet management system, given a current route identifier number, find the next available palindromic route number that can be assigned to a delivery vehicle. A palindromic route number reads the same forwards and backwards, and the system must always assign the smallest possible palindrome that is greater than the current route identifier.
    

    """
    numstr = str(num)
    for i in range(num + 1, sys.maxsize):
        if str(i) == str(i)[::-1]:
            return i