2+6+10+14+...+122+126=how much.
2+6+10+14+…+122+126=多少．
<gadget id="calculator">2 + 126</gadget>
<output>128</output>

<gadget id="calculator">32 / 2</gadget>
<output>16</output>

<gadget id="calculator">128 * 16</gadget>
<output>2_048</output>

<result>2_048</result>