Select 5 numbers from 1 to 6 and fill in the following formula so that the result of the formula is as large as possible ○*(○-○)*(○-○)
从1～6中选出5个数，填入下式，使得算式的结果尽量大○*(○-○)*(○-○)
<gadget id="calculator">6 - 1 - 2</gadget>
<output>3</output>

<gadget id="calculator">4 + 5 + 3</gadget>
<output>12</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>