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 C (GCC 9.2.1) (judge verdict: Accepted)

#include<stdio.h>

int main()
{
    int A,B,i,j=0,k,l,o,r;
    scanf("%d %d",&A,&B);
    for(i=A;i<=B;i++)
    {
        o=i;
        r=0;
        while(o!=0)
        {
            l=o%10;
            r=r*10+l;
            o=o/10;
        }
        if(r==i)
            j++;
    }
    printf("%d\n",j);

    return 0;
}