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: Runtime Error)

a, b = map(int, input().split())
cnt = 0
for i in range(A, B + 1):
  x = str(i)
  j, k = 0, len(x) - 1
  while j < k:
    if x[j] != x[k]:
      break
   	j += 1
    k -= 1
  if k <= j:
    cnt += 1
print(cnt)