On a 4*4 square table, choose 2 small squares to dye red, if the same dyeing method is regarded as the same dyeing method after rotation, how many different dyeing methods are there? (requires detailed problem-solving process)
一个4*4的正方形表格上，选择2个小方格染上红色，如果旋转以后相同的染色方法视为同一种染色方法，那么共有多少种不同的染色方法？(需要详细解题过程)
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

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

<gadget id="calculator">4 + 28</gadget>
<output>32</output>

<result>32</result>