tape box is a cuboid, 10 cm long, 5 cm wide, and 3 cm thick. If 10 such tapes are packed, how many square centimeters of wrapping paper are needed at least? (not counting joints)
一种磁带盒为长方体，长10厘米，宽5厘米，厚3厘米，如果给10盒这样的磁带包装，至少需要包装纸多少平方厘米？(接头处不计)
<gadget id="calculator">5 * 2 * 5 * 2 * 2</gadget>
<output>200</output>

<gadget id="calculator">5 * 2 * 3 * 5 * 4</gadget>
<output>600</output>

<gadget id="calculator">200 + 600</gadget>
<output>800</output>

<result>800</result>