The packaging box of an ink bottle is a cube with a side length of 8 cm. The salesperson uses paper to pack 4 bottles of such ink, and at least how many square centimeters of paper are used. (overlap is ignored)
一种墨水瓶的包装盒是棱长8厘米的正方体，营业员用纸把4瓶这样的墨水包装起来，至少用纸多少平方厘米．(重叠处忽略不计)
<gadget id="calculator">16 * 16</gadget>
<output>256</output>

<gadget id="calculator">16 * 8</gadget>
<output>128</output>

<gadget id="calculator">256 + 128 + 128</gadget>
<output>512</output>

<gadget id="calculator">512 * 2</gadget>
<output>1_024</output>

<result>1_024</result>