GoodNumbers

using System;
using System.Collections.Generic;
using System.Linq;

namespace FirstProgram
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] tokens = Console.ReadLine().Split();
            int a = int.Parse(tokens[0]);
            int b = int.Parse(tokens[1]);
            int counter = 0;
            for (int i = a; i <= b; i++)
            {
                bool isGoodNumber = true;
                int x = i;
                while (isGoodNumber && x > 0)
                {
                    int digit = x % 10;
                    if (digit !=0 && i % digit !=0)
                    {
                        isGoodNumber = false;
                    }
                    x /= 10;

                }
                if (isGoodNumber)
                {
                    counter++;
                }
            }

            Console.WriteLine(counter);
        }
    }
}