Install street lamps around a square square, one on each of the four vertices, so that there are 14 on each side, how many street lamps are installed on all sides?
在一个正方形广场四周安装路灯，四个顶点都装有一盏，这样每边都有14盏，四周共装路灯多少盏？
<gadget id="calculator">14 * 4</gadget>
<output>56</output>

<gadget id="calculator">56 - 4</gadget>
<output>52</output>

<result>52</result>