In the archery competition, the rule is: 5 points for hitting an arrow, and 2 points for missing the shot. Xiaohong shot 5 arrows and hit 3 times. According to the rules, how many points he deserves.
射箭比赛，规定：射中一箭得5分，射不中倒扣2分．小红射了5箭，射中3次．按照规则，他应得多少分．
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">15 - 4</gadget>
<output>11</output>

<result>11</result>