> 4 contour
20.2004	37.8744	4
20.2838	37.8654	4
20.3671	37.8542	4
20.3901	37.8471	4
20.4504	37.8323	4
20.5338	37.7942	4
20.577	37.7638	4
20.6171	37.7311	4
20.6661	37.6805	4
20.7004	37.6114	4
20.7073	37.5971	4
20.7229	37.5138	4
20.7154	37.4305	4
20.7004	37.3923	4
20.6834	37.3471	4
20.6171	37.2683	4
20.6125	37.2638	4
20.5338	37.2053	4
20.477	37.1805	4
20.4504	37.168	4
20.3671	37.142	4
20.2838	37.1328	4
20.2004	37.1247	4
20.1171	37.1583	4
20.0607	37.1805	4
20.0338	37.1897	4
19.9504	37.2431	4
19.926	37.2638	4
19.8671	37.3345	4
19.8577	37.3471	4
19.8209	37.4305	4
19.8139	37.5138	4
19.8288	37.5971	4
19.8671	37.6656	4
19.8753	37.6805	4
19.9504	37.7562	4
19.9608	37.7638	4
20.0338	37.8114	4
20.1171	37.8391	4
20.1387	37.8471	4
20.2004	37.8744	4
> 8 contour
20.2004	37.7197	8
20.2838	37.7152	8
20.3671	37.6936	8
20.391	37.6805	8
20.4504	37.645	8
20.4974	37.5971	8
20.5237	37.5138	8
20.5125	37.4305	8
20.4504	37.3567	8
20.4391	37.3471	8
20.3671	37.3023	8
20.2838	37.2854	8
20.2004	37.2818	8
20.1171	37.3283	8
20.0914	37.3471	8
20.0338	37.417	8
20.0241	37.4305	8
20.0078	37.5138	8
20.0338	37.5784	8
20.0392	37.5971	8
20.1171	37.6704	8
20.1363	37.6805	8
20.2004	37.7197	8
> 12 contour
20.2004	37.6481	12
20.2838	37.6579	12
20.3671	37.631	12
20.4082	37.5971	12
20.4465	37.5138	12
20.4316	37.4305	12
20.3671	37.3695	12
20.2838	37.3497	12
20.2004	37.3551	12
20.1171	37.4099	12
20.0981	37.4305	12
20.0732	37.5138	12
20.1171	37.5863	12
20.1273	37.5971	12
20.2004	37.6481	12
> 16 contour
20.2838	37.6224	16
20.3375	37.5971	16
20.3671	37.5794	16
20.4141	37.5138	16
20.3852	37.4305	16
20.3671	37.4134	16
20.2838	37.3769	16
20.2004	37.4015	16
20.1619	37.4305	16
20.1233	37.5138	16
20.2004	37.5943	16
20.2062	37.5971	16
20.2838	37.6224	16
> 20 contour
20.2004	37.5414	20
20.2838	37.5915	20
20.3671	37.5343	20
20.3818	37.5138	20
20.3671	37.4783	20
20.335	37.4305	20
20.2838	37.404	20
20.2236	37.4305	20
20.2004	37.4654	20
20.174	37.5138	20
20.2004	37.5414	20