Xiaohong has 3 different short-sleeved shirts and 4 different skirts. How many different ways does she wear them?
小红有3件不同短袖衫和4件不同的短裙，她一共有多少种不同穿法．
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>