Wang Liang practices calligraphy on two pages every day, with 15 Chinese characters written on each page. How many Chinese characters did he write in total in May?
王亮每天练习写两页书法，每页上面写15个汉字，他五月份共写多少个汉字？
<gadget id="calculator">15 * 2 * 31</gadget>
<output>930</output>

<result>930</result>