Wavelet has three stamp albums. (1/5) of all stamps is on the first book, ((n)/7) (n is a natural number) is on the second book, and the remaining 26 stamps are on the third book. How many stamps does Xiaobo have in total?
小波有三本集邮册，全部邮票的(1/5)在第一本上，((n)/7)(n为自然数)在第二本上，剩下的26张邮票在第三本上．小波一共有多少张邮票．
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">28 - 15</gadget>
<output>13</output>

<gadget id="calculator">26 / 13</gadget>
<output>2</output>

<gadget id="calculator">2 * 35</gadget>
<output>70</output>

<result>70</result>