One foot
touches
ground
I
O
B
G
G
I
O
N
B
I
B
I
O
G
I
B
B
B
I
O
N
I
O
G
G
N
N
G
G
N
O
Size:
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Start
I
History
Start
I
O
B
G
G
I
O
N
B
I
B
I
O
G
I
B
B
B
I
O
N
I
O
G
G
N
N
G
G
N
O
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