def main():
    import math

    x, y = [int(i) for i in input().split(" ")]

    l = math.sqrt(x**2 + y**2)
    r = math.ceil(l)

    if l.is_integer():
        ans = r * 2 + 1
    else:
        ans = r * 2


    print(ans)


if __name__ == "__main__":
    main()