The old man glanced at him a few times, then looked at Qi Si and said, "My eldest son has gone to serve his duty, so now it's just me and my youngest son working. Li Ma will tell you that I'm slow at making bricks. How many do you need","Charcoal is even more expensive, three coins per hundred jin. In winter, it costs three and a half coins.",Who can carry dozens of dollars out, mustn't drown.。