A cylindrical tea cup has a base radius of 4 cm and a height of 12 cm. How many square centimeters of wrapping paper should be used to make a cuboid packaging box for this tea cup?
一个圆柱形茶杯，底面半径4厘米，高12厘米，给这个茶杯制作一个长方体包装盒，至少要用多少平方厘米的包装纸？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 8 * 2</gadget>
<output>128</output>

<gadget id="calculator">8 * 12 * 4</gadget>
<output>384</output>

<gadget id="calculator">128 + 384</gadget>
<output>512</output>

<result>512</result>