"3-level (3x3x3 -- 4sets -- z -45*3)	maxabs"
3 4 1
3
-1	1	0	-1
	1	0	-1
	1	0	-1

0	2	0	-2
	2	0	-2
	2	0	-2

1	1	0	-1
	1	0	-1
	1	0	-1
3
-1	1	 1	 0
	1	 0	-1
	0	-1	-1

0	2	 2	 0
	2	 0	-2
	0	-2	-2

1	1	 1	 0
	1	 0	-1
	0	-1	-1
3
-1	 1	 1	 1
	 0	 0	 0
	-1	-1	-1

0	 2	 2	 2
	 0	 0	 0
	-2	-2	-2

1	 1	 1	 1
	 0	 0	 0
	-1	-1	-1
3
-1	 0	 1	1
	-1	 0	1
	-1	-1	0

0	 0	 2	2
	-2	 0	2
	-2	-2	0

1	 0	 1	1
	-1	 0	1
	-1	-1	0
