#coding=UTF-8

mojir=input()
hyo=mojir.split(" ")
Xp=int(hyo[0])
Yp=int(hyo[1])

distni=Xp**2+Yp**2
ans=1
while True:
    if ans**2 > distni*4: #(ans/2)**2 > distni と等価
        break
    ans=ans+1

print(ans)