Today is August 24, one of the five Product Days in a year.  A date m-d (m is the month, d is the date) is called a Product Day when d is a two-digit number, and all of the following conditions are satisfied (here d_{10} is the tens digit of the day and d_1 is the ones digit of the day):    * d_1 \geq 2   * d_{10} \geq 2   * d_1 \times d_{10} = m  Takahashi wants more Product Days, and he made a new calendar called Takahashi Calendar where a year consists of M month from Month 1 to Month M, and each month consists of D days from Day 1 to Day D.  In Takahashi Calendar, how many Product Days does a year have?
m, d = [int(i) for i in input().split()]

def digit(i):
    if i > 0:
        return digit(i//10) + [i%10]
    else:
        return []
month_list = range(0, m+1, 1)
days_list = range(0, d+1, 1)
seki_list =[]
for m in month_list:
    for d in days_list:
        if d >=20 :
            day_list = digit(d)
            print(day_list)
            print(int(day_list[0]))
            print(int(day_list[1]))
            if int(day_list[0]) >= 2 and int(day_list[1]) >= 2:
                print("hoge1")
                if (int(day_list[0])* int(day_list[1])) == m:
                    print("hoge2")
                    seki_list.append("hoge")

print(len(seki_list))
m, d = [int(i) for i in input().split()]

def digit(i):
    if i > 0:
        return digit(i//10) + [i%10]
    else:
        return []
month_list = range(0, m+1, 1)
days_list = range(0, d+1, 1)
seki_list =[]
for m in month_list:
    for d in days_list:
        if d >=20 :
            day_list = digit(d)
            if int(day_list[0]) >= 2 and int(day_list[1]) >= 2:
                if (int(day_list[0])* int(day_list[1])) == m:
                    seki_list.append("hoge")

print(len(seki_list))