The tens digit of a two-digit number is three times the ones digit. If the two digits are subtracted from 36, the number obtained is equal to the number obtained by swapping the tens digit and the ones digit of the original number. What is the original number?
一个两位数的十位数字是个位数字的3倍，如果把这个两位数减去36，得到的数等于原数的十位数字和个位数字对调后的数，则原数是多少．
<result>62</result>