A cuboid iron bucket without a cover, the bottom is a square with a side length of 4 decimeters and a height of 6 decimeters. How many square decimeters of iron sheet is needed to make a bucket like this?
一种无盖的长方体形铁皮水桶，底面是边长4分米的正方形，高6分米．做一只这样的水桶至少要多少平方分米铁皮？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">4 * 6 * 4</gadget>
<output>96</output>

<gadget id="calculator">16 + 96</gadget>
<output>112</output>

<result>112</result>