Both Xiaowei and Xiaodong are fans of stamp collecting. Xiaowei has 126 stamps. After he gave them to Xiaodong (1/6), he found that he had the same number of stamps as Xiaodong. How many stamps did Xiaodong originally have?
小伟和小东都是集邮的爱好者．小伟有126张邮票，他送给小东(1/6)后，发现自己和小东的邮票同样多了．小东原来有多少张邮票？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">126 * (1/6) * 2</gadget>
<output>42</output>

<gadget id="calculator">126 - 42</gadget>
<output>84</output>

<result>84</result>