Attend 3
days in
a row
O
B
N
I
I
N
G
G
B
G
O
I
O
B
B
G
N
O
O
I
N
I
G
N
B
Size:
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Start
O
History
Start
O
B
N
I
I
N
G
G
B
G
O
I
O
B
B
G
N
O
O
I
N
I
G
N
B
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