How many square centimeters of wrapping paper should be used at least to pack two pieces of cuboid soap with a length of 7 cm, a width of 5 cm, and a thickness of 3 cm (not counting the joints)
把长7厘米、宽5厘米、厚3厘米的长方体肥皂两块包装在一起，至少要用多少平方厘米包装纸(接头处不计)
<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">3 + 3</gadget>
<output>6</output>

<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">35 + 42 + 30</gadget>
<output>107</output>

<gadget id="calculator">107 * 2</gadget>
<output>214</output>

<result>214</result>