import math
from decimal import *
import re
getcontext().prec = 700

m = Decimal(1 - float(input())/100)
n = Decimal(float(input()))
ma = re.search(r'\.(\d)', str(n/m)).group(1)
if ma in ['6', '7', '8', '9']:
  print(math.floor(n/m)+1)
else:
  print(math.floor(n/m))