From the 2012 natural numbers 1, 2, 3, ..., 2011, 2012, how many different numbers must be taken out to ensure that one of these numbers must be a multiple of 5.
从1、2、3、…、2011、2012这2012个自然数中，至少取出多少个不同的数才能保证这些数中一定有一个自然数是5的倍数．
<gadget id="calculator">2_012 - 402</gadget>
<output>1_610</output>

<gadget id="calculator">1_610 + 1</gadget>
<output>1_611</output>

<result>1_611</result>