What is the abbreviation of constellation in English?

Second: second (second)

The third time: the third time

The fourth time: the fourth time

The fifth time: the fifth time

Sixth time: the sixth time

The seventh time: the seventh time

Eighth time: the eighth time

Ninth session: the ninth session

10 day: the tenth day (10 day)

1 1 day: 11th (1 1 day)

12 day: the twelfth day (12 day)

13: 13th (13)

14: 14th (14)

15 days: 15th (15 days)

16: 16th (16)

17: 17th (17)

18: Ba (18)

19: 19th (19)

20th: 20th (20th)

2 1 day: 21st (2 1 day)

22nd: 22nd (22nd)

23rd session: 23rd session.

The 24th meeting

25th: 25th (25th)

The 26th session (26th session)

27th: 27th.

28: 28th session

29th Session: 29th Session

30: 30th session

3 1: the 31st (3 1st)