○*○=□=○/○, fill the seven numbers from 0 to 6 in the circle and the square, each number appears exactly once, to form an integer formula with only one digit and two digits, and fill in the square What is the number in the grid.
○*○=□=○/○，将0～6这七个数字填在圆圈和方格内，每个数字恰好出现一次，组成只有一位数和两位数的整数算式，问填在方格内的数是多少．
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>