The sum of three consecutive odd numbers is 165, what is the largest number among them?
三个连续奇数的和是165，其中最大的数是多少．
<gadget id="calculator">165 - 6</gadget>
<output>159</output>

<gadget id="calculator">159 / 3</gadget>
<output>53</output>

<gadget id="calculator">53 + 4</gadget>
<output>57</output>

<result>57</result>