A salted fishapos;s

"By the way, old man, do you burn coal here How much does coal cost, is it expensive",“Why aren’t you expensive A hundred catties for just three coins, and once winter arrives, they will sell for five coins.” The old man sighed: “Don’t think my bricks are expensive either; my family only earns a hard-earned living.”,"Then I'll order 20,000 blue bricks and 20,000 red bricks. Uncle, give me a discount."。