There are some children lined up, and starting from the first person on the left, every two people are given an apple; starting from the first person on the right, every fourth person is given an orange. As a result, 10 children got both apples and oranges. So how many of these children are there at most?
有一些小朋友排成一行，从左面第一个人开始每隔两人发一个苹果；从右面第一个人开始，每隔四人发一个橘子，结果有10个小朋友苹果和橘子都拿到．那么这些小朋友最多有几人？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 11</gadget>
<output>165</output>

<gadget id="calculator">165 + 1</gadget>
<output>166</output>

<gadget id="calculator">166 - 5 - 3</gadget>
<output>158</output>

<result>158</result>