The first round:
A-B, Central Europe, Eastern Europe, Central and Eastern Europe
The second round:
B-D, for example, f = h.
The third round:
A-D, England, France, England, France
The fourth round:
Arabic, English, French, English, German
The fifth round:
Afa, Befa, Chinese law and German law
The sixth round:
Arabic, English, Chinese, English, French
The seventh round:
A-Han, B- Ge, C-F, D-E
Turn from the eighth to the fourteenth round and repeat the first seven rounds. If the home and away games are divided, the home and away games will change.