A salted fishapos;s

"Old man, we just registered here. You know the woods north of town To the west of the woods, at the foot of the barren hill... The big lord gave us that land and plans for us to build a house there.",Then you tell me, how many bricks would it take to build a house asked Lao Er.,"By the way, old man, do you burn coal here How much does coal cost, is it expensive"。