1.
2.7 +
1.6 =
N
G
B
B
N
I
G
I
I
G
I
O
N
O
I
G
O
N
O
B
B
G
O
B
Size:
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Start
N
History
Start
N
G
B
B
N
I
G
I
I
G
I
O
N
O
I
G
O
N
O
B
B
G
O
B
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