import java.util.Scanner;

public class GoodNumbes {

    public static int checkDigits(int a, int b){

        boolean isGood = true;
        int counterNum = 0;

        for (int i = b; i >= a; i--) {


            if (a <= 10 && b <= 10) {
                counterNum++;
            } else {
                isGood = true;

                int counter = 0;
                int[] arr = new int[10];
                int copy = i;
                while (copy > 0) {
                    int digit = copy % 10;
                    arr[counter] = digit;
                    counter++;
                    if (!(copy > 10)) {
                        break;
                    }
                    else{
                        copy /= 10;
                    }


                }
                for (int j = 0; j < counter; j++) {

                    if (arr[j] == 0) {
                        continue;
                    }
                    if (i % arr[j] != 0) {
                        isGood = false;
                        break;


                    }

                }
                if (isGood) {

                    counterNum++;
                }
                isGood = true;
            }
        }
        System.out.println();
        return (counterNum);

    }

    public static void main(String[] args) {


        Scanner in = new Scanner(System.in);
        String line = in.nextLine();

        String[] nums = line.split(" ");
        int[] arr = new int[2];


        for (int i = 0; i < arr.length ; i++) {
            arr[i] =Integer.parseInt(nums[i]);
        }

        int a = arr[0];
        int b = arr[1];


        System.out.println(checkDigits(a, b));


    }
}