day 6

import re
d = [list(map(int, re.findall(r"(\d+)", l))) for l in open("input").read().splitlines()]
p=1
#d=[[int(''.join(map(str, d[i])))] for i in range(2)] #remove for part 2
for x,y in zip(d[0],d[1]):
    p*=sum(1 for i in range(x) if i*(x-i)>y)
print(p)