Calculation: ((55*45-37*43)-(3*221+1))/22=how much.
计算：((55*45-37*43)-(3*221+1))/22=多少．
<gadget id="calculator">55 * 45</gadget>
<output>2_475</output>

<gadget id="calculator">37 * 43</gadget>
<output>1_591</output>

<gadget id="calculator">2_475 - 1_591</gadget>
<output>884</output>

<gadget id="calculator">3 * 221</gadget>
<output>663</output>

<gadget id="calculator">663 + 1</gadget>
<output>664</output>

<gadget id="calculator">884 - 664</gadget>
<output>220</output>

<gadget id="calculator">220 / 22</gadget>
<output>10</output>

<result>10</result>