For a two-digit number, the ones digit is 3 greater than the tens digit, and the sum of the ones digit and the tens digit is three times the tens digit. What is the two digit number?
一个两位数，个位数字比十位数字大3，个位数字与十位数字的和是十位数字的3倍，这个两位数是多少
<result>36</result>