Problem:
Score : 200 points

Problem Statement

Find the number of palindromic numbers among the integers between A and B (inclusive).
Here, a palindromic number is a positive integer whose string representation in base 10 (without leading zeros) reads the same forward and backward.

Constraints

10000 \leq A \leq B \leq 99999

All input values are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the number of palindromic numbers among the integers between A and B (inclusive).

Sample Input 1

11009 11332

Sample Output 1

4

There are four integers that satisfy the conditions: 11011, 11111, 11211 and 11311.

Sample Input 2

31415 92653

Sample Output 2

612

Solution in Python (3.8.2) (judge verdict: Accepted)

a, b = map(int, input().split(" "))
count = 0
for v in range(a, b + 1):
    v1 = v % 10
    v2 = v // 10 % 10
    v3 = v // 100 % 10
    v4 = v // 1000 % 10
    v5 = v // 10000 % 10
    if v1 == v5 and v2 == v4:
        count += 1
print(count)