On Children's Day on June 1, the school placed a square flower around it, with 68 flowers all around, how many flowers are there on each side?
六一儿童节学校摆了一处四周为正方形的花卉，四周共有68朵花，每边有多少朵花．
<gadget id="calculator">68 / 4</gadget>
<output>17</output>

<gadget id="calculator">17 + 1</gadget>
<output>18</output>

<result>18</result>