It is known that △+Ο=16, △-Ο=2, then how much △*Ο=.
已知△+Ο=16，△-Ο=2那么△*Ο=多少．
<gadget id="calculator">16 - 2</gadget>
<output>14</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">7 + 2</gadget>
<output>9</output>

<gadget id="calculator">7 * 9</gadget>
<output>63</output>

<result>63</result>