Xiao Wang spent two-thirds of his money, and lost two-thirds of the remaining money, leaving 4 yuan. How much money did he have at first?
小王花掉了他的钱的三分之二，又丢掉了余下的钱的三分之二，还剩4元钱．开始他有多少钱？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / (1/3) / (1/3)</gadget>
<output>36</output>

<result>36</result>