> 3 contour
253.267	18.7277	3
253.35	18.7215	3
253.398	18.7136	3
253.434	18.7095	3
253.517	18.6799	3
253.59	18.6302	3
253.6	18.6222	3
253.67	18.5469	3
253.684	18.5194	3
253.714	18.4636	3
253.733	18.3802	3
253.729	18.2969	3
253.703	18.2136	3
253.684	18.1799	3
253.657	18.1302	3
253.6	18.0684	3
253.572	18.0469	3
253.517	18.0099	3
253.434	17.979	3
253.35	17.9659	3
253.287	17.9636	3
253.267	17.9624	3
253.265	17.9636	3
253.184	18.0006	3
253.1	18.0442	3
253.097	18.0469	3
253.017	18.1242	3
253.012	18.1302	3
252.964	18.2136	3
252.944	18.2969	3
252.942	18.3802	3
252.959	18.4636	3
253.002	18.5469	3
253.017	18.5654	3
253.078	18.6302	3
253.1	18.649	3
253.184	18.6948	3
253.234	18.7136	3
253.267	18.7277	3
> 6 contour
253.267	18.562	6
253.35	18.5582	6
253.387	18.5469	6
253.434	18.538	6
253.516	18.4636	6
253.517	18.461	6
253.561	18.3802	6
253.555	18.2969	6
253.517	18.2289	6
253.508	18.2136	6
253.434	18.1501	6
253.388	18.1302	6
253.35	18.1115	6
253.267	18.1183	6
253.252	18.1302	6
253.184	18.1893	6
253.159	18.2136	6
253.113	18.2969	6
253.109	18.3802	6
253.141	18.4636	6
253.184	18.5083	6
253.244	18.5469	6
253.267	18.562	6
> 9 contour
253.267	18.4904	9
253.35	18.5052	9
253.433	18.4636	9
253.434	18.4632	9
253.497	18.3802	9
253.491	18.2969	9
253.434	18.2276	9
253.416	18.2136	9
253.35	18.1664	9
253.267	18.1892	9
253.241	18.2136	9
253.184	18.2926	9
253.181	18.2969	9
253.172	18.3802	9
253.184	18.4	9
253.233	18.4636	9
253.267	18.4904	9
> 12 contour
253.267	18.4378	12
253.35	18.4617	12
253.434	18.4147	12
253.46	18.3802	12
253.449	18.2969	12
253.434	18.2777	12
253.355	18.2136	12
253.35	18.2105	12
253.342	18.2136	12
253.267	18.2434	12
253.222	18.2969	12
253.216	18.3802	12
253.267	18.4378	12
> 15 contour
253.267	18.3937	15
253.35	18.442	15
253.427	18.3802	15
253.418	18.2969	15
253.35	18.2352	15
253.267	18.2907	15
253.262	18.2969	15
253.255	18.3802	15
253.267	18.3937	15