For a six-digit number, the ones digit is 5, the one hundred thousand digit is 9, and the sum of any adjacent three digits is 20. What is the six-digit number?
一个六位数，个位数字是5，十万位上的数是9，任意相邻的三个数位上数的和都是20，这个六位数是多少．
<result>965_965</result>