Both a and b are natural numbers, and if a/b=100...15, what is the minimum value of a?
a、b都是自然数，符合a/b=100…15，则a的最小值为多少．
<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<gadget id="calculator">16 * 100</gadget>
<output>1_600</output>

<gadget id="calculator">1_600 + 15</gadget>
<output>1_615</output>

<result>1_615</result>