Use two cuboids with a length of 5 decimeters, a width of 3 decimeters and a height of 2 decimeters to form a large cuboid. What is the minimum surface area of this large cuboid in decimeters**2.
用两个长5分米，宽3分米，高2分米的长方体拼成一个大长方体，这个大长方体表面积最小是多少分米**2．
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">15 + 20 + 12</gadget>
<output>47</output>

<gadget id="calculator">47 * 2</gadget>
<output>94</output>

<result>94</result>