# yukicoder No.98 円を描こう

import math

x_p, y_p = map(int, input().split())
d_p = (x_p ** 2 + y_p ** 2) ** 0.5

d = d_p * 2

if d == math.ceil(d):
    print(math.ceil(d) + 1)
else:
    print(math.ceil(d))