An elephant in the zoo eats 308 kilograms of food every day, how many kilograms of food does the breeder prepare for it in a week?
动物园里的一头大象每天要吃308千克食物，饲养员一周要为它准备多少千克的食物？
<gadget id="calculator">308 * 7</gadget>
<output>2_156</output>

<result>2_156</result>