<image> The little rabbit wants to find the little dog to play with, but it doesn't know where the little dog's house is. The mother said, "The house number of the little dog is a three-digit number, the digit in the hundreds place is equivalent to 4 times the digit in the ones place, and the digit in the tens place is 7 less than the sum of the digits in the hundreds and ones places." The little rabbit thought for a long time, but still couldn't figure it out. Can you help it think of the answer?