A salted fishapos;s

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",Which one is longest, that's the one to choose first.,"I nodded and shook my head, 'There are fewer big ones, but many small ones.'"。