Calculation: 22+44+22+55+55+88+66+888+55-55+666-8-5-2-3+5555=how much.
计算：22+44+22+55+55+88+66+888+55-55+666-8-5-2-3+5555=多少．
<gadget id="calculator">55 - 55</gadget>
<output>0</output>

<gadget id="calculator">666 - 8 - 5 - 2 - 3</gadget>
<output>648</output>

<gadget id="calculator">22 + 44 + 22 + 55 + 55 + 88 + 66 + 888 + 0 + 648 + 5_555</gadget>
<output>7_443</output>

<result>7_443</result>