Two cuboids with a length of 5 cm, a width of 3 cm and a height of 1 cm are put together to form a cuboid with the largest surface area. What is the surface area of this large cuboid?
有两个长5cm，宽3cm，高1cm的长方体拼成一个表面积最大的长方体，这个大长方体的表面积是多少．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">10 * 1</gadget>
<output>10</output>

<gadget id="calculator">3 * 1</gadget>
<output>3</output>

<gadget id="calculator">30 + 10 + 3</gadget>
<output>43</output>

<gadget id="calculator">43 * 2</gadget>
<output>86</output>

<result>86</result>