350.0											x
340.0									X		X
330.0									X	O	X
320.0									X	O	X
310.0							x		X	O	X
300.0							X	O	X	o
290.0							X	O	X
280.0	x		x				X	O	X
275.0	X	O	X	O	x		X	o
270.0	X	O	X	O	X	O	X				B
265.0	X	O	X	O	X	O	X			B
260.0	X	O	X	O		O	X		B
255.0		O	X			O	X	B
250.0		O	X			o	B
245.0		o				B