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 5.4.1) (judge verdict: Accepted)

#include<stdio.h>

int main(){
    int A, B;
    int S[5];
    int ans=0;

    scanf("%d %d", &A, &B);
    for(int i=A; i<=B; i++){
        S[0] = i%10;
        S[1] = i%100/10;
        S[2] = i%1000/100;
        S[3] = i%10000/1000;
        S[4] = i/10000;
        if(S[0]==S[4] && S[1]==S[3]){
            ans++;
        }
    }
    printf("%d", ans);

    return 0;
}