> 1 contour
180.877	-20.0423	1
180.96	-19.9927	1
181.044	-19.9852	1
181.127	-19.9879	1
181.203	-20.0588	1
181.21	-20.0702	1
181.261	-20.1422	1
181.271	-20.2255	1
181.238	-20.3088	1
181.21	-20.3403	1
181.182	-20.3922	1
181.127	-20.451	1
181.044	-20.4604	1
180.96	-20.4431	1
180.883	-20.3922	1
180.877	-20.3879	1
180.809	-20.3088	1
180.794	-20.2281	1
180.793	-20.2255	1
180.794	-20.2199	1
180.8	-20.1422	1
180.858	-20.0588	1
180.877	-20.0423	1
> 2 contour
180.96	-20.0717	2
181.044	-20.0636	2
181.127	-20.0854	2
181.175	-20.1422	2
181.194	-20.2255	2
181.162	-20.3088	2
181.127	-20.3539	2
181.044	-20.3827	2
180.96	-20.3651	2
180.9	-20.3088	2
180.877	-20.2255	2
180.888	-20.1422	2
180.96	-20.0717	2
> 3 contour
180.96	-20.108	3
181.044	-20.0964	3
181.119	-20.1422	3
181.127	-20.1544	3
181.159	-20.2255	3
181.127	-20.2846	3
181.105	-20.3088	3
181.044	-20.3458	3
180.96	-20.3185	3
180.95	-20.3088	3
180.897	-20.2255	3
180.925	-20.1422	3
180.96	-20.108	3
> 4 contour
181.044	-20.1292	4
181.065	-20.1422	4
181.125	-20.2255	4
181.044	-20.3088	4
181.044	-20.309	4
181.043	-20.3088	4
180.96	-20.2871	4
180.916	-20.2255	4
180.96	-20.1442	4
180.971	-20.1422	4
181.044	-20.1292	4