Given that a⊙b=a*b-(a+b), try to find 6⊙(4⊙3).
已知a⊙b=a*b-(a+b)，试求6⊙(4⊙3)．
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">30 - 11</gadget>
<output>19</output>

<result>19</result>