Mom gave Xiao Ming a box of candy, and he ate it in two days. Xiao Ming ate 5 yuan on the first day, and 8 yuan less than 4 times the amount on the first day on the second day. How many candies are there in this box?
妈妈送给小明一盒糖，两天吃完．小明第一天吃了5块，第二天吃的比第一天的4倍少8块．这盒糖一共有多少块？
<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">20 - 8</gadget>
<output>12</output>

<gadget id="calculator">12 + 5</gadget>
<output>17</output>

<result>17</result>