In the forest, the animals are holding a number contest. Teacher Yang asked a question: "Little animals stand in line, and the little rabbit stands in the middle. There are 4 small animals in front of it and 5 small animals behind it. How many small animals are there in total?" The little monkey quickly raised his hand and said, "A total of There are 9 small animals." Teacher Yang shook his head and said, "Wrong, think again." Children, do you know the answer?
森林里，动物们正在举行数字比赛．羊老师出了一道题："小动物们站队，小兔站中间，它前边有4只小动物，后边有5只小动物，一共有多少只小动物？"小猴连忙举手说："一共有9只小动物．"羊老师摆摆头说："错了，再想一想．"小朋友，你知道答案吗？
<gadget id="calculator">4 + 5 + 1</gadget>
<output>10</output>

<result>10</result>