> 2 contour
273.13	11.7799	2
273.213	11.8579	2
273.296	11.8531	2
273.38	11.8293	2
273.444	11.776	2
273.463	11.7408	2
273.49	11.6927	2
273.499	11.6093	2
273.463	11.5292	2
273.462	11.526	2
273.38	11.4441	2
273.373	11.4427	2
273.296	11.4134	2
273.213	11.4069	2
273.168	11.4427	2
273.13	11.4732	2
273.083	11.526	2
273.059	11.6093	2
273.067	11.6927	2
273.126	11.776	2
273.13	11.7799	2
> 4 contour
273.296	11.7987	4
273.331	11.776	4
273.38	11.7388	4
273.418	11.6927	4
273.433	11.6093	4
273.38	11.5304	4
273.373	11.526	4
273.296	11.4807	4
273.213	11.4977	4
273.182	11.526	4
273.134	11.6093	4
273.146	11.6927	4
273.213	11.7739	4
273.22	11.776	4
273.296	11.7987	4
> 6 contour
273.213	11.7192	6
273.296	11.7613	6
273.372	11.6927	6
273.38	11.6561	6
273.394	11.6093	6
273.38	11.5886	6
273.296	11.5267	6
273.213	11.5563	6
273.172	11.6093	6
273.191	11.6927	6
273.213	11.7192	6
> 8 contour
273.296	11.736	8
273.344	11.6927	8
273.366	11.6093	8
273.296	11.5454	8
273.213	11.6061	8
273.21	11.6093	8
273.213	11.6186	8
273.232	11.6927	8
273.296	11.736	8