Beijing successfully held the 29th Olympic Games, leaving the world with beautiful scenes worthy of aftertaste. Uncle Zhao enlarged the photo taken to 80cm in length and 60cm in width, and planned to put wooden strips around it for appreciation and collection. Please do the math, at least how many centimeters of wooden strips should Uncle Zhao prepare?
北京成功举行了第29届奥运会，给世人留下了一幕幕值得回味的美好场景．赵叔叔把拍下的照片放大到长80cm，宽60cm，准备给它四周围上木条便于欣赏、收藏．请你算一下，赵叔叔至少要准备木条多少厘米？
<gadget id="calculator">80 + 60</gadget>
<output>140</output>

<gadget id="calculator">140 * 2</gadget>
<output>280</output>

<result>280</result>