The average age of male teachers in a certain school is 27 years old, the average age of female teachers is 32 years old, and the average age of all teachers is 30 years old. If there are 13 fewer male teachers than female teachers, how many teachers are there in the school?
某校男老师的平均年龄是27岁，女老师的平均年龄是32岁，全体老师的平均年龄是30岁．如果男老师比比女老师少13名，那么该校共有多少名老师．
<gadget id="calculator">13 * 32</gadget>
<output>416</output>

<gadget id="calculator">13 * 30</gadget>
<output>390</output>

<gadget id="calculator">416 - 390</gadget>
<output>26</output>

<gadget id="calculator">32 - 30</gadget>
<output>2</output>

<gadget id="calculator">2 * 30</gadget>
<output>60</output>

<gadget id="calculator">60 - 32 - 27</gadget>
<output>1</output>

<gadget id="calculator">26 / 1</gadget>
<output>26</output>

<gadget id="calculator">26 + 13</gadget>
<output>39</output>

<gadget id="calculator">26 + 39</gadget>
<output>65</output>

<result>65</result>