The sum of the ones digit and the tens digit of a two-digit number is 13. If the tens digit is multiplied by 4 and the ones digit is multiplied by 5, the sum of the two products equals 59. So what is this two-digit number?
一个两位数的个位数字与十位数字之和是13，如果十位数字乘4，个位数字乘5，两积相加的和等于59．那么这个两位数是多少．
<result>67</result>