Requirements: The symbol "&" is an operation to select the larger of the two numbers, and "◎" is the operation to select the smaller of the two numbers. Calculate the following formula: ((7◎3)&5)*(5◎(3&7)).
规定：符号"&"为选择两数中较大数的运算，"◎"为选择两数中较小数的运算．计算下式：((7◎3)&5)*(5◎(3&7))．
<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<result>30</result>