From the 100 natural numbers 1, 2, 3, 4, ..., 100, randomly select N numbers, among which there must be two such numbers, one is 3 times the other, what is the minimum value of N?
从1，2，3，4，…，100这100个自然数中，任取N个数，其中必有这样的两个数，一个是另一个的3倍，则N的最小值是多少？
<gadget id="calculator">99 - 33</gadget>
<output>66</output>

<gadget id="calculator">66 + 1</gadget>
<output>67</output>

<result>67</result>