Paint 6 sides of a cuboid with a length of 30cm, a width of 10cm, and a height of 6cm, and then cut it into small cubes with a length of 1cm. How many cubes are there in the painted part?
将长30cm，宽10cm，高6cm的长方体6面涂色，再切成长1cm的小正方体，涂色部分有多少个正方体？
<gadget id="calculator">30 - 2</gadget>
<output>28</output>

<gadget id="calculator">28 * 4</gadget>
<output>112</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">112 + 32 + 16</gadget>
<output>160</output>

<gadget id="calculator">28 * 4 * 2</gadget>
<output>224</output>

<gadget id="calculator">8 * 4 * 2</gadget>
<output>64</output>

<gadget id="calculator">28 * 8 * 2</gadget>
<output>448</output>

<gadget id="calculator">224 + 64 + 448</gadget>
<output>736</output>

<gadget id="calculator">8 + 160 + 736</gadget>
<output>904</output>

<result>904</result>