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 (3.4.3) (judge verdict: Accepted)

A, B = [int(i) for i in input().rstrip().split(' ')]
cnt = 0
for i in range(A, B+1):
    arr = [i for i in list(str(i))]
    if not arr[0] == arr[-1]:
        continue
    
    asc = ''.join(arr)
    desc = ''.join(list(reversed(arr)))
    if asc == desc:
        cnt += 1

print(cnt)