There are 100 consecutive natural numbers, please arrange them in a certain order, and then calculate the sum of three adjacent numbers, how many of them are even numbers at most.
有100个连续自然数，请你按某种顺序排列，然后计算相邻三个数的和，其中和为偶数的最多有多少个．
<gadget id="calculator">100 - 2 - 1</gadget>
<output>97</output>

<result>97</result>