using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using static System.Console;
using static System.Math;

namespace AtCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            var md = ReadInts();
            var ans = 0;
            for (int i = 1; i <= md[0]; i++)
            {
                for (int d = 22; d <= md[1]; d++)
                {
                    var a = d.ToString();
                    //WriteLine(a);

                    if (int.Parse(a[0].ToString()) >= 2 && int.Parse(a[1].ToString()) >= 2)
                    {

                        if (int.Parse(a[0].ToString()) * int.Parse(a[1].ToString()) == i)
                        {
                            ans++;
                        }
                    }
                }
            }
            WriteLine(ans);
        }

        private static string Read() { return ReadLine(); }
        private static string[] Reads() { return (Read().Split()); }
        private static int ReadInt() { return int.Parse(Read()); }
        private static long ReadLong() { return long.Parse(Read()); }
        private static double ReadDouble() { return double.Parse(Read()); }
        private static int[] ReadInts() { return Array.ConvertAll(Read().Split(), int.Parse); }
        private static long[] ReadLongs() { return Array.ConvertAll(Read().Split(), long.Parse); }
        private static double[] ReadDoubles() { return Array.ConvertAll(Read().Split(), double.Parse); }


        public static bool IsPrime(int num)
        {
            if (num < 2) return false;
            else if (num == 2) return true;
            else if (num % 2 == 0) return false;

            double sqrtNum = Sqrt(num);
            for (int i = 3; i <= sqrtNum; i += 2)
            {
                if (num % i == 0)
                {
                    return false;
                }
            }
            return true;
        }

        //最大公約数
        public static int Gcd(int a, int b)
        {
            if (a < b)
            {
                return Gcd(b, a);
            }
            while (b != 0)
            {
                var reminder = a % b;
                a = b;
                b = reminder;
            }
            return a;
        }

        //最小公倍数
        public static int Lcm(int a, int b)
        {
            return a * b / Gcd(a, b);
        }

        //文字数を数える
        public static int CountChar(string s, char c)
        {
            return s.Length - s.Replace(c.ToString(), "").Length;
        }
        public static void debuglist(List<int> x)
        {
            foreach (var item in x)
            {
                WriteLine(item);
            }
        }
        public static void debuglist(List<string> x)
        {
            foreach (var item in x)
            {
                WriteLine(item);
            }
        }
        public static void debugarray(int[] x)
        {
            foreach (var item in x)
            {
                WriteLine(item);
            }
        }
        public static void debugarray(string[] x)
        {
            foreach (var item in x)
            {
                WriteLine(item);
            }
        }
    }
}


Measured memory_bytes: 13140