There are 367 boys and 343 girls in the school, and 200 of them have had a physical examination. How many of them have not had a physical examination?
学校有男生367人，女生343人，已经体检的有200人，还剩多少人没有体检？
<gadget id="calculator">343 - 200</gadget>
<output>143</output>

<gadget id="calculator">367 + 143</gadget>
<output>510</output>

<result>510</result>