def main():

    F = [0]*(10**7+1)
    for x in range(3200):
        for y in range(3200):
            r = x**2+y**2
            if 0 <= r <= 10**7:
                if x == 0 and y == 0:
                    F[r] += 1
                elif x == 0 or y == 0:
                    F[r] += 2
                else:
                    F[r] += 4
    x, y = map(int, input().split())
    ans = 0
    for i in range(x, y+1):
        ans = max(F[i], ans)
    print(ans)

if __name__ == '__main__':
    main()