At the school fun sports meeting, Teacher Sun from Class 1 of the third grade had to choose a pair of runners from 3 male students and 4 female students to participate in the final of the two-person three-legged run. Girl, please help Teacher Sun think about it: How many different ways are there in total? (use your favorite method to solve)
学校趣味运动会上，三年级1班的孙老师要在3名男同学和4名女同学中选出一对选手参加两人三足跑的决赛，比赛规则是每对参赛的选手必须是一男一女，请你帮孙老师想一想：一共有多少种不同的选法？(用自己喜欢的方法来解决)
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>