For a two-digit number, the number in the ones place is twice the number in the tens place. If the number in the tens place and the number in the ones place are reversed, the new two-digit number obtained is 36 times larger than the original two-digit number. Find the original two digits.
一个两位数，个位上的数字是十位上数字的2倍，如果把十位上的数字与个位上的数字对调，那么得到的新两位数比原两位数大36．求原两位数．
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">1 - 10 - 2</gadget>
<output>-11</output>

<gadget id="calculator">20 + (-11)</gadget>
<output>9</output>

<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>