Tie a piece of iron wire into a rectangular parallelepiped frame. It is known that the length of the rectangular parallelepiped frame is 2 meters, the width is 15 decimeters, and the height is 20 decimeters. How much iron wire is needed at least?
用一根铁丝扎成一个长方体框架，巳知长方体框架长是2米，宽是15分米，高是20分米，最少需多少铁丝？
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">20 + 15 + 20</gadget>
<output>55</output>

<gadget id="calculator">55 * 4</gadget>
<output>220</output>

<result>220</result>