It is known that the difference between the two numbers of A and B is 207. If the decimal point of B is moved one bit to the right, it is equal to A. What is the value of B?
已知甲乙两个数的差为207，将乙数的小数点向右移动一位，就等于甲数，则乙数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">207 / 9</gadget>
<output>23</output>

<result>23</result>