import java.util.Scanner;


    public class Main {
        static boolean checkDivisibility (int n, int digit){
            return (digit != 0 && n % digit == 0);
        }
        static boolean allDigitsDivide(int n){
            int temp = n;

            while (temp > 0){
                int digit = n % 10;

                if (!checkDivisibility(n, digit))
                    return false;
                temp /= 10;
            }
            return true;
        }
        public static void main(String[] args) {
            Scanner scan = new Scanner(System.in);
            String input = scan.nextLine();
            String[] arr = input.split(" ");
            int[] intArr = new int[arr.length];
            int counter = 1;

            int firstNumber = 0;
            int secondNumber = 0;

            for (int i = 0; i < arr.length; i++) {
                intArr[i] = Integer.parseInt(arr[i]);
                if (i % 2 == 0){
                    firstNumber = intArr[i];
                }
                else{
                    secondNumber = intArr[i];
                }
            }

            for (int i = firstNumber; i <= secondNumber; i++) {

                if (allDigitsDivide(i)) {
                    counter++;
                }
            }
                System.out.println(counter);
        }
    }