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?
A = list(map(int, input().split()))

M = A[0]
D = A[1]
count = 0

for i in range(4,M+1):
  for j in range(22,D+1):
    print(j)
    day = list(str(j))
    m10 = int(day[0])
    m1 = int(day[1])
    if i == m10 * m1:
      count+=1
    
  

print(count)
M, D = map(int, input().split())

count = 0

if M < 4 or D < 22:
  print(0)
else:
  for i in range(4,M+1):
    for j in range(22,D+1):
      d = list(str(j))
      if int(d[0]) < 2 or int(d[1]) < 2:
        continue
      if i == int(d[0])*int(d[1]):
        count += 1
      
    
  
  print(count)