Chocolates are 26 yuan per box. Xiaohong bought 3 boxes of chocolates and paid 100 yuan. How much should she get back?
巧克力每盒26元，小红买3盒巧克力，付了100元，应找回多少元？
<gadget id="calculator">26 * 3</gadget>
<output>78</output>

<gadget id="calculator">100 - 78</gadget>
<output>22</output>

<result>22</result>