Question

Maximum Volume of a Rectangular Box

20 14

3

A = 20, B = 14

The maximum volume of Rectangular Box we can get is 3 cm

20 16

4

A = 20, B = 16

The maximum volume of Rectangular Box we can get is 4 cm

John was given a task to make a rectangular box during his innovation competition. He has been provided with the

**A cm**of wire and**B cm**of special paper. He had to use the wire (for the^{2}**12 edges**) and paper (for the**6 sides**) to make the box. So what will be the maximum volume of that box?Input

There is a single line of input that takes two space-separated integers representing

1 ≤ A,B ≤ 10

**A**and**B**respectively.**Constraints:**1 ≤ A,B ≤ 10

^{6}Output

Print a single integer representing the maximum volume of that box.

Example

**Input:**

20 14

**Output:**

3

**Explanation:**

A = 20, B = 14

The maximum volume of Rectangular Box we can get is 3 cm

^{3}.

**Input:**

20 16

**Output:**

4

**Explanation:**

A = 20, B = 16

The maximum volume of Rectangular Box we can get is 4 cm

^{3}.