normal81 2 1x y z-10	0 	10010	0	1000	-10	1000	10	100-9.5	0	90.259.5	0	90.250	-9.5	90.250	9.5	90.25-9	0	819	0	810	-9	810	9	81-8.5	0	72.258.5	0	72.250	-8.5	72.250	8.5	72.25-8	0	648	0	640	-8	640	8	64-7.5	0	56.257.5	0	56.250	-7.5	56.250	7.5	56.25-7	0	497	0	490	-7	490	7	49-6.5	0	42.256.5	0	42.250	-6.5	42.250	6.5	42.25-6	0	366	0	360	-6	360	6	36-5.5	0	30.255.5	0	30.250	-5.5	30.250	5.5	30.25-5	0	255	0	250	-5	250	5	25-4.5	0	20.254.5	0	20.250	-4.5	20.250	4.5	20.25-4	0	164	0	160	-4	160	4	16-3.5	0	12.253.5	0	12.250	-3.5	12.250	3.5	12.25-3	0	93	0	90	-3	90	3	9-2.5	0	6.252.5	0	6.250	-2.5	6.250	2.5	6.25-2	0	42	0	40	-2	40	2	4-1.5	0	2.251.5	0	2.250	-1.5	2.250	1.5	2.25-1	0	11	0	10	-1	10	1	1-0.5	0	0.250.5	0	0.250	-0.5	0.250	0.5	0.250	0