The hunter caught a total of 46 birds (2 legs) and beasts (4 legs) in the encirclement area in one day, and they had 112 legs in total, so how many birds are there?
猎人在围捕区内一天中共捕到飞禽(2只脚)和走兽(4只脚)46只，它们共有脚112只，那么其中有多少只飞禽．
<gadget id="calculator">46 * 2</gadget>
<output>92</output>

<gadget id="calculator">112 - 92</gadget>
<output>20</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">46 - 10</gadget>
<output>36</output>

<result>36</result>