Li Xin and Zhang Cheng shared 152 stamps. After Li Xin gave Zhang Cheng 12 stamps, they both had the same number of stamps. How many stamps did Zhang Cheng originally have?
李新和张成共有邮票152张，李新给张成12张邮票后，两人的邮票张数同样多，张成原来有邮票多少张．
<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">152 - 24</gadget>
<output>128</output>

<gadget id="calculator">128 / 2</gadget>
<output>64</output>

<result>64</result>