# Block NW (1 value)
0.4	1.35	5	A
# Block NE (2 values)
1.3	1.7	4	B
1.7	1.3	6	C
# Block SW (5 values)
0.2	0.2	3	D
0.4	0.4	4	E
0.6	0.6	5	F
0.5	0.5	6	G
0.2	0.7	7	H
# Block SE (6 values)
1.3	0.2	2	I
1.4	0.4	3	J
1.7	0.6	4	K
1.5	0.6	6	L
1.2	0.8	7	M
1.9	0.18	8	N