0    0    0    0    
	0    0    0    0    0
		0    0    0    0    0	0	0	0	
		0    0    0    1    0	0	0	0	
		0    0    0    2    0	0	0	0	
		0    0    1    0    1	0	1	1	
		0    0    1    1    1	0	1	1	
		0    0    1    2    1	0	1	1	
		0    0    2    0    2	0	2	2	
		0    0    2    1    2	0	2	2	
		0    0    2    2    2	0	2	2	
