In the manual class, Xiaohong used plasticine to make a cylindrical school tool. Knowing that the diameter of the bottom of the cylinder is 4 cm and the height is 6 cm, she wants to make another cuboid paper box, pack the school tool and give it to the math teacher. How many square centimeters of hard paper do you need to make this carton?
在手工课上小红用橡皮泥做一个圆柱形学具，已知这个圆柱底面直径4厘米，高6厘米，她想再做一个长方体纸盒，把这个学具包装好后送给数学老师．做这个纸盒至少需要多少平方厘米硬纸？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">16 + 24 + 24</gadget>
<output>64</output>

<gadget id="calculator">64 * 2</gadget>
<output>128</output>

<result>128</result>