Among the one hundred integers 1, 2, 3, ..., 99, 100, select some numbers such that the difference between any two numbers is not equal to 1, 2, 6, then how many numbers can be selected from them at most.
在1，2，3，…，99，100这一百个整数中，选出一些数，使得任意两数之差都不等于1，2，6，那么从中最多能选出多少个数．
<gadget id="calculator">28 + 1</gadget>
<output>29</output>

<result>29</result>