The National Table Tennis Team has 3 male and 4 female seed players, how many ways are there to form a mixed doubles with a male and a female?
国家乒乓球队有3男4女种子选手，要组成一男一女混合双打共有多少种搭配方法．
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>