> 3 contour
279.663	33.4959	3
279.746	33.4993	3
279.829	33.5001	3
279.872	33.4578	3
279.829	33.414	3
279.746	33.4151	3
279.663	33.4181	3
279.624	33.4578	3
279.663	33.4959	3
> 3 contour
279.996	33.4271	3
280.049	33.3745	3
280.06	33.2912	3
279.996	33.2241	3
279.913	33.223	3
279.846	33.2912	3
279.913	33.356	3
279.943	33.3745	3
279.996	33.4271	3
> 3 contour
280.413	32.9708	3
280.495	32.9578	3
280.469	32.8745	3
280.413	32.8086	3
280.403	32.7912	3
280.335	32.7078	3
280.329	32.7034	3
280.246	32.6339	3
280.229	32.6245	3
280.163	32.5854	3
280.079	32.5428	3
280.073	32.5412	3
279.996	32.4589	3
279.913	32.5047	3
279.829	32.4901	3
279.819	32.5412	3
279.829	32.5514	3
279.913	32.5471	3
279.996	32.5658	3
280.027	32.6245	3
280.079	32.6813	3
280.115	32.7078	3
280.079	32.7155	3
280.004	32.7912	3
280.079	32.867	3
280.154	32.7912	3
280.163	32.7522	3
280.217	32.7912	3
280.246	32.8183	3
280.329	32.8039	3
280.406	32.8745	3
280.4	32.9578	3
280.413	32.9708	3
> 6 contour
279.996	33.3947	6
280.017	33.3745	6
280.039	33.2912	6
279.996	33.246	6
279.913	33.2438	6
279.867	33.2912	6
279.913	33.3363	6
279.976	33.3745	6
279.996	33.3947	6