develop
1 | st, 2, 3, 3, 4, 4, 5, 6, 7, 8, 8, 9, 10,1-65438+lL
12 13 13 14 15 16 16.
17 17 18 18 19 19 No.20 2 1 No.
2 20th, 22nd, 23rd, 23rd, 24th, 24th, 25th, 26th, 26th, 27th, 28th, 28th, 29th, 30th.
The 31st session
I hope my answer can help you.