Process a batch of toys and complete them in three days. What is completed on the first day is 2/7 of the second day, and what is completed on the third day accounts for 1/3 of this batch of toys. It is known that the second day is more expensive than the first day Make 1000 more toys, how many toys are there in this batch?
加工一批玩具，三天完成，第一天完成的是第二天的(2/7)，第三天完成的占这批玩具的(1/3)，己知第二天比第一天多做1000个，这批玩具共有多少个？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 + 7</gadget>
<output>9</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(2/3) * (7/9)</gadget>
<output>14/27 = around 0.518519</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/3) * (2/9)</gadget>
<output>4/27 = around 0.148148</output>

<gadget id="calculator">(14/27) - (4/27)</gadget>
<output>10/27 = around 0.37037</output>

<gadget id="calculator">1_000 / (10/27)</gadget>
<output>2_700</output>

<result>2_700</result>