Calculation: 314*31.4+628*68.6+68.6*686=how much.
计算：314*31.4+628*68.6+68.6*686=多少．
<gadget id="calculator">314 * 31.4</gadget>
<output>9_859.6</output>

<gadget id="calculator">628 * 68.6</gadget>
<output>43_080.8</output>

<gadget id="calculator">68.6 * 686</gadget>
<output>47_059.6</output>

<gadget id="calculator">9_859.6 + 43_080.8 + 47_059.6</gadget>
<output>100_000</output>

<result>100_000</result>