"Six Day" Children's Day, the students placed a square hollow flower bed with flower pots at the school gate, one pot at each of the four corners, and put 8 potted flowers on each side, so please calculate how many potted flowers are placed around.
"六一"儿童节，同学们在学校门口用花盆摆了一个正方形空心花坛，四个角各一盆，每边各放8盆花，那么请算算，四周放了多少盆花．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

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

<result>28</result>