What's the difference between Wei Zi A and B in Dream Westward Journey?

The rewards of Wei Zi A and B in Fantasy Westward Journey are different every week, so the difference is different. Among them, Wei Zi is divided into A, B, C and D, within eight rounds of A and fifteen rounds of B, so the reward given by A is relatively better.

Fantasy Westward Journey is a national turn-based hand tour. The new version is advanced in equipment and heavy in weight! Netease's signature masterpiece won the Best Popular Game Award of the Year.