The product of 50*51*52*…*186, how many consecutive zeros are there at the end?
50*51*52*…*186的积，末尾有多少个连续的零．
<gadget id="calculator">185 - 50</gadget>
<output>135</output>

<gadget id="calculator">135 / 5</gadget>
<output>27</output>

<gadget id="calculator">27 + 1 + 6 + 1</gadget>
<output>35</output>

<result>35</result>