#include 
#include 
using namespace std;

int main()
{
    int L, R;
    cin >> L >> R;
    int count_zimson = 0;
    for(int i = L; i <= R; i++) {
        int tmp = i;
        int divisible = 0;
        while(tmp > 0) {
            int digit = tmp % 10;
            if(digit != 0 and i % digit == 0) {
                divisible = 1;
            }
            else {
                divisible = 0;
                break;
            }
            tmp /= 10;
        }
        if(divisible == 1) {
            count_zimson++;
            continue;
        }
        int niza[6];
        tmp = i;
        int c = 0;
        while(tmp > 0) {
            niza[c] = tmp % 10;
            tmp /= 10;
            c++;
        }
        int l = 0, r = c - 1;
        int is_palindrome = 0;
        while(l <= r) {
            if(niza[l] == niza[r]) {
                l++;
                r--;
                is_palindrome = 1;
            }
            else {
                is_palindrome = 0;
                break;
            }
        }
        if(is_palindrome == 1) {
            count_zimson++;
        }
    }
    cout << count_zimson << endl;
    return 0;
}
/*

 **/