The 10 children count in the order of 1 to 3, and the ones who report even numbers leave the team. How many people are left in the team?
10个小朋友按1～3的顺序循环报数，报双数的离队，队伍还剩多少人？
<gadget id="calculator">10 - 3</gadget>
<output>7</output>

<result>7</result>