(1/2)+1+1(1/2)+2+2(1/2)+...+49(1/2)+50.
(1/2)+1+1(1/2)+2+2(1/2)+…+49(1/2)+50．
<gadget id="calculator">1 + 50</gadget>
<output>51</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">51 * 25 * 2</gadget>
<output>2_550</output>

<gadget id="calculator">2_550 - 50</gadget>
<output>2_500</output>

<gadget id="calculator">2_500 + 25</gadget>
<output>2_525</output>

<result>2_525</result>