According to a*b=(a+3)*(b+5), find the value of 5*(6*7).
规定a*b=(a+3)*(b+5)，求5*(6*7)的值．
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">108 + 5</gadget>
<output>113</output>

<gadget id="calculator">8 * 113</gadget>
<output>904</output>

<result>904</result>