There are 4 pots of flowers in the classroom, one of which has 4 flowers, and the other 3 pots have 3 flowers. How many flowers are there in total in these 4 pots?
教室里有4盆花，其中一盆开了4朵花，其余3盆都开了3朵花，这4盆花一共开了多少朵花．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 + 4</gadget>
<output>13</output>

<result>13</result>