There are four children, one is one year older than the other, the sum of the ages of the four is 46, how old is the oldest of the four children?
有四个孩子，恰好一个比一个大1岁，4人的年龄和是46，问这四个孩子中最大的几岁？
<gadget id="calculator">46 + 3 + 2 + 1</gadget>
<output>52</output>

<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<result>13</result>