> 3 contour
281.309	-0.823881	3
281.33	-0.828	3
281.359	-0.832291	3
281.409	-0.832595	3
281.459	-0.868346	3
281.509	-0.851346	3
281.559	-0.867863	3
281.569	-0.878	3
281.559	-0.901047	3
281.533	-0.928	3
281.559	-0.966764	3
281.567	-0.978	3
281.592	-1.028	3
281.605	-1.078	3
281.609	-1.128	3
281.605	-1.178	3
281.591	-1.228	3
281.568	-1.278	3
281.559	-1.29061	3
281.535	-1.328	3
281.509	-1.35494	3
281.472	-1.378	3
281.459	-1.38623	3
281.409	-1.41517	3
281.359	-1.42398	3
281.332	-1.428	3
281.309	-1.43228	3
281.286	-1.428	3
281.259	-1.42398	3
281.209	-1.41521	3
281.159	-1.38623	3
281.146	-1.378	3
281.109	-1.35415	3
281.084	-1.328	3
281.059	-1.29022	3
281.05	-1.278	3
281.027	-1.228	3
281.013	-1.178	3
281.009	-1.13119	3
281.009	-1.128	3
281.009	-1.12436	3
281.013	-1.078	3
281.026	-1.028	3
281.051	-0.978	3
281.059	-0.967478	3
281.086	-0.928	3
281.109	-0.902917	3
281.146	-0.878	3
281.159	-0.869528	3
281.209	-0.840815	3
281.259	-0.831902	3
281.287	-0.828	3
281.309	-0.823881	3
> 6 contour
281.309	-0.915808	6
281.326	-0.928	6
281.359	-0.945822	6
281.402	-0.978	6
281.409	-0.987791	6
281.445	-1.028	6
281.459	-1.06267	6
281.509	-1.07163	6
281.514	-1.078	6
281.509	-1.08713	6
281.477	-1.128	6
281.467	-1.178	6
281.459	-1.19265	6
281.445	-1.228	6
281.409	-1.26927	6
281.387	-1.278	6
281.359	-1.2899	6
281.309	-1.30614	6
281.259	-1.2917	6
281.229	-1.278	6
281.209	-1.26944	6
281.173	-1.228	6
281.159	-1.19265	6
281.151	-1.178	6
281.138	-1.128	6
281.149	-1.078	6
281.159	-1.0609	6
281.173	-1.028	6
281.209	-0.986933	6
281.232	-0.978	6
281.259	-0.966017	6
281.291	-0.928	6
281.309	-0.915808	6
> 9 contour
281.309	-0.969694	9
281.331	-0.978	9
281.359	-1.01133	9
281.367	-1.028	9
281.409	-1.05918	9
281.421	-1.078	9
281.434	-1.128	9
281.421	-1.178	9
281.409	-1.19681	9
281.369	-1.228	9
281.359	-1.23408	9
281.309	-1.25369	9
281.259	-1.23423	9
281.249	-1.228	9
281.209	-1.19584	9
281.197	-1.178	9
281.185	-1.128	9
281.196	-1.078	9
281.209	-1.0579	9
281.246	-1.028	9
281.259	-1.02007	9
281.301	-0.978	9
281.309	-0.969694	9
> 12 contour
281.309	-1.00301	12
281.333	-1.028	12
281.359	-1.05622	12
281.384	-1.078	12
281.405	-1.128	12
281.384	-1.178	12
281.359	-1.19975	12
281.309	-1.21978	12
281.259	-1.19975	12
281.235	-1.178	12
281.216	-1.128	12
281.232	-1.078	12
281.259	-1.05379	12
281.284	-1.028	12
281.309	-1.00301	12
> 15 contour
281.309	-1.0356	15
281.346	-1.078	15
281.359	-1.08852	15
281.384	-1.128	15
281.359	-1.16703	15
281.345	-1.178	15
281.309	-1.19674	15
281.273	-1.178	15
281.259	-1.16347	15
281.24	-1.128	15
281.259	-1.08867	15
281.269	-1.078	15
281.309	-1.0356	15