Day	A ( 7:00~15:00)	B (15:00~23:00)	C (23:00~31:00)
1	TI	Shuei	SM
2		RS
3	Shuei		WO
4
5		TI
6	HN
7	RS		HN
8	SM
9		Shuei
10
11			RS
12	HN
13		WO
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2