X,Y=map(int,input().split())
Y+=1
sX=int(Y**.5)+1
sY=int(Y**.5)+1
cnt=[0]*Y
for x in range(-sX,sX+1):
    for y in range(-sY,sY+1):
        d=x*x+y*y
        if d<Y:
            cnt[d]+=1
ans=max(cnt[X:Y])
print(ans)