Calculate how much 1.4*7.7*3+5.8*7.7-15.4*2=.
计算1.4*7.7*3+5.8*7.7-15.4*2=多少．
<gadget id="calculator">1.4 * 7.7 * 3</gadget>
<output>32.34</output>

<gadget id="calculator">5.8 * 7.7</gadget>
<output>44.66</output>

<gadget id="calculator">15.4 * 2</gadget>
<output>30.8</output>

<gadget id="calculator">44.66 - 30.8</gadget>
<output>13.86</output>

<gadget id="calculator">32.34 + 13.86</gadget>
<output>46.2</output>

<result>46.2</result>