The sum of the digits of a three-digit number is 17. Where the tens digit is 1 greater than the ones digit. If the hundreds and ones digits of this three-digit number are swapped to get a new three-digit number, then the new three-digit number is 198 greater than the original three-digit number, find the original number.
一个三位数的各位数字之和是17．其中十位数字比个位数字大1．如果把这个三位数的百位数字与个位数字对调，得到一个新的三位数，则新的三位数比原三位数大198，求原数．
<result>476</result>