7 different positive integers are arranged in a row. If the sum of any three adjacent numbers is greater than 15, what is the smallest sum of these 7 positive integers?
7个各不相同的正整数排成一排．如果任何三个相邻数的和都大于15，这7个正整数的和最小是多少．
<gadget id="calculator">35 / 1</gadget>
<output>35</output>

<result>35</result>