Calculation: (-2)-2-|-7|+3-2*(-(1/2))
计算：(-2)-2-|-7|+3-2*(-(1/2))
<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<gadget id="calculator">-2</gadget>
<output>-2</output>

<gadget id="calculator">2 * (-2)</gadget>
<output>-4</output>

<gadget id="calculator">3 - (-4)</gadget>
<output>7</output>

<gadget id="calculator">4 - 7</gadget>
<output>-3</output>

<gadget id="calculator">(-3) + 3 + 1</gadget>
<output>1</output>

<result>1</result>