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)

def resolve():
    allPt = []
    for i in range(1, 10):
        for j in range(10):
            for k in range(10):
                allPt.append(int(str(i) + str(j) + str(k) + str(j) + str(i)))
    A, B = [int(i) for i in input().split()]
    cnt = 0
    for i in allPt:
        if A <= i and i <= B:
            cnt += 1
    print(cnt)


resolve()