Count Palindrome Numbers in a Range

Create a function that returns the number of palindrome numbers in a specified range (inclusive).

For example, between 8 and 34, there are 5 palindromes: 8, 9, 11, 22 and 33. Between 1550 and 1552 there is exactly one palindrome: 1551.

Examples

countPalindromes(1, 10) ➞ 9

countPalindromes(555, 556) ➞ 1

countPalindromes(878, 898) ➞ 3

Notes

• A palindrome number is a number which remains the same when its digits are reversed. For example, 2552 reversed is still 2552. The reflectional symmetry of this number makes it a palindromic number.
• Single-digit numbers are trivially palindrome numbers.