A cuboid gift box is 20 cm long, 15 cm wide, and 10 cm high. Now it needs to be bound in a cross shape with a red ribbon (the largest side is facing upwards), and the knot is 20 cm. How many centimeters of ribbon is needed in total?
一个长方体的礼品盒，长20厘米、宽15厘米、高10厘米，现在要用红绸带进行十字形捆扎(最大的面朝上)，打结处20厘米，一共需要绸带多少厘米．
<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">15 * 2</gadget>
<output>30</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<gadget id="calculator">40 + 30 + 40 + 20</gadget>
<output>130</output>

<result>130</result>