import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

from math import sqrt

d1, d2 = map(int, readline().split())
a = sqrt(d1) * 2
b = sqrt(2 * d2)
if a > b:
    print(8)
elif a == b:
    print(4)
else:
    print(0)