In 2007, Xiaoming’s family had a big ewe. From the spring of the second year, it could give birth to 2 young rams and 3 small ewes every year. Each small ewe started from the third year after birth (for example: 2008 The young ewes born in 2010) can also give birth to 2 rams and 3 ewes every year, so by the end of 2012, how many sheep will there be in Xiao Ming's family? (This assumes that Xiaoming's sheep have always been healthy)
2007年小明家有一只大母羊，从第二年春天开始它每年能生下2只小公羊和3只小母羊，每只小母羊从出生后的第三年开始(比如：2008年出生的小母羊到2010年时)每年也能生下2只公羊和3只母羊，那么到2012年底，小明家一共有多少只羊．(这里假设小明的羊一直都很健康)
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">1 + 5 + 5 + 5 + 15</gadget>
<output>31</output>

<gadget id="calculator">1 + 3 + 3</gadget>
<output>7</output>

<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">31 + 35</gadget>
<output>66</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">1 + 3 + 3 + 3 + 9</gadget>
<output>19</output>

<gadget id="calculator">19 * 5</gadget>
<output>95</output>

<gadget id="calculator">66 + 95</gadget>
<output>161</output>

<result>161</result>