There are 4 cubes painted with red paint, and their edge lengths are 1, 3, 5, 7. Saw these cubes into smaller cubes with side length 1. How many of the obtained small cubes have at least one face that is red?
有4个表面涂有红漆的正方体，它们的棱长为1、3、5、7．将这些正方体锯成棱长为1的小正方体．得到的小正方体中，至少有一个面是红色的共有多少个．
<gadget id="calculator">3 ** 3</gadget>
<output>27</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 3</gadget>
<output>1</output>

<gadget id="calculator">27 - 1</gadget>
<output>26</output>

<gadget id="calculator">5 ** 3</gadget>
<output>125</output>

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

<gadget id="calculator">125 - 27</gadget>
<output>98</output>

<gadget id="calculator">7 ** 3</gadget>
<output>343</output>

<gadget id="calculator">7 - 2</gadget>
<output>5</output>

<gadget id="calculator">343 - 125</gadget>
<output>218</output>

<gadget id="calculator">1 + 26 + 98 + 218</gadget>
<output>343</output>

<result>343</result>