4 bowls of water can fill 1 jug, 4 jugs of water can fill 1 bucket, and how many bowls can 1 bucket of water fill.
4碗水可以装1壶，4壶水可以装1桶，1桶水可以装多少碗．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<result>16</result>