cube container with a side length of 6 decimeters is filled with water. Now pour the water in the cube container into a cuboid tank with a length of 12 decimeters, a width of 6 decimeters and a height of 5 decimeters. Find the distance from the water surface in the cuboid tank to the mouth of the tank.
一个棱长6分米的正方体容器，装满了水．现将正方体容器里的水倒人一个长12分米，宽6分米，高5分米的长方体水槽中，求现在长方体水槽中水面到水槽口的距离．
<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<gadget id="calculator">216 / 72</gadget>
<output>3</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>