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F x 3 0 2x

F x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2x
F x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2x
F x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2x
F x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2x
F x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2xF x 3 0 2x