(0,0) [1,4]				(0,1) [2,4]
(1,0) [2,1]	(1,1) [1,1]	(1,2) [1,2]
	(2,0) [2,4]				(2,1) [2,2]		(2,2) [1,1]
(3,0) [1,1]							(3,1) [1,1]
(4,0) [3,2]		(4,1) [1,1]	(4,2) [3,1]	(4,3) [4,4]
		(5,0) [1,1]
		(6,0) [1,1]
(7,0) [1,4]