A natural number, the digits of the product of it and 99 are all even numbers, find the minimum value that meets the requirements.
一个自然数，它与99的乘积的各位数字都是偶数，求满足要求的最小值．
<gadget id="calculator">228_888 / 99</gadget>
<output>2_312</output>

<result>2_312</result>