A/17=15…B, what is the maximum value of A
A/17=15…B，A最大是多少
<gadget id="calculator">17 * 15</gadget>
<output>255</output>

<gadget id="calculator">17 - 1</gadget>
<output>16</output>

<gadget id="calculator">255 + 16</gadget>
<output>271</output>

<result>271</result>