When 4 is added to a three-digit number, the sum of the new three-digit number is (1/2) the sum of the original three-digit number. What is the sum of all three-digit numbers satisfying this condition.
一个三位数加上4，得到的新三位数的数字和是原三位数的数字之和的(1/2)．所有满足这样条件的三位数之和是多少．
<result>10</result>