Xiaoming's storybooks are 7 times that of Xiaohong's. During the winter break, they bought the same number of storybooks. At this time, Xiaoming's storybooks are 6 times that of Xiaohong's; during the summer vacation, they bought the same number of storybooks, and at this time, Xiaoming's storybooks are 5 times that of Xiaohong's. So, how many story books did Xiao Ming and Xiao Hong have in total at the beginning?
小明的故事书的本数是小红的7倍，寒暇中，他们买了同样多的故事书．这时，小明的故事书的本数是小红的6倍；暑假中，他们又买了同样多的故事书，这时，小明的故事书的本数是小红的5倍．那么，最初小明和小红的故事书至少共有多少本．
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<result>80</result>