Use a four-digit number to form the largest four-digit number, which is 3132 larger than the original four-digit number, use these four numbers to form a smallest four-digit number, which is 1350 smaller than the original four-digit number, Find the original four-digit number.
用一个四位数的四个数组成一个最大的四位数，它比原来的四位数大3132，用这四个数字组成一个最小的四位数，它比原来的四位数小1350，求原来的四位数是多少．
<result>5_408</result>