> 3 contour
251.175	24.809	3
251.258	24.808	3
251.303	24.8056	3
251.342	24.8039	3
251.425	24.7945	3
251.508	24.7796	3
251.592	24.7579	3
251.675	24.7308	3
251.693	24.7223	3
251.758	24.6926	3
251.842	24.6475	3
251.855	24.6389	3
251.925	24.5935	3
251.974	24.5556	3
252.008	24.5277	3
252.067	24.4723	3
252.092	24.4462	3
252.142	24.3889	3
252.175	24.3452	3
252.202	24.3056	3
252.248	24.2223	3
252.258	24.1993	3
252.286	24.1389	3
252.315	24.0556	3
252.334	23.9723	3
252.342	23.9218	3
252.347	23.8889	3
252.352	23.8056	3
252.35	23.7223	3
252.342	23.6545	3
252.34	23.6389	3
252.323	23.5556	3
252.299	23.4723	3
252.264	23.3889	3
252.258	23.3783	3
252.222	23.3056	3
252.175	23.2318	3
252.168	23.2223	3
252.1	23.1389	3
252.092	23.1298	3
252.017	23.0556	3
252.008	23.0477	3
251.925	22.9811	3
251.912	22.9723	3
251.842	22.9253	3
251.773	22.8889	3
251.758	22.8809	3
251.675	22.8408	3
251.592	22.8148	3
251.556	22.8056	3
251.508	22.7924	3
251.425	22.7761	3
251.342	22.7656	3
251.258	22.7614	3
251.175	22.7607	3
251.092	22.7709	3
251.008	22.785	3
250.927	22.8056	3
250.925	22.8061	3
250.842	22.831	3
250.758	22.8644	3
250.707	22.8889	3
250.675	22.9039	3
250.592	22.9574	3
250.571	22.9723	3
250.508	23.0191	3
250.466	23.0556	3
250.425	23.1022	3
250.42	23.1389	3
250.425	23.1535	3
250.508	23.1992	3
250.519	23.2223	3
250.508	23.2713	3
250.481	23.3056	3
250.427	23.3889	3
250.425	23.3926	3
250.383	23.4723	3
250.342	23.4877	3
250.286	23.5556	3
250.28	23.6389	3
250.277	23.7223	3
250.276	23.8056	3
250.258	23.834	3
250.22	23.8889	3
250.175	23.9598	3
250.147	23.9723	3
250.168	24.0556	3
250.175	24.0768	3
250.196	24.1389	3
250.252	24.2223	3
250.258	24.2632	3
250.283	24.3056	3
250.342	24.3868	3
250.343	24.3889	3
250.417	24.4723	3
250.425	24.4804	3
250.508	24.5549	3
250.509	24.5556	3
250.592	24.6166	3
250.626	24.6389	3
250.675	24.6696	3
250.758	24.708	3
250.795	24.7223	3
250.842	24.7409	3
250.925	24.7671	3
251.008	24.7864	3
251.092	24.7991	3
251.149	24.8056	3
251.175	24.809	3
> 6 contour
251.008	24.1549	6
251.092	24.1914	6
251.175	24.2155	6
251.258	24.213	6
251.342	24.2043	6
251.425	24.1793	6
251.5	24.1389	6
251.508	24.1345	6
251.592	24.0671	6
251.603	24.0556	6
251.661	23.9723	6
251.675	23.9369	6
251.694	23.8889	6
251.708	23.8056	6
251.703	23.7223	6
251.678	23.6389	6
251.675	23.6327	6
251.633	23.5556	6
251.592	23.5067	6
251.557	23.4723	6
251.508	23.4353	6
251.425	23.394	6
251.408	23.3889	6
251.342	23.3669	6
251.258	23.3566	6
251.175	23.3534	6
251.092	23.3822	6
251.076	23.3889	6
251.008	23.4157	6
250.93	23.4723	6
250.925	23.4762	6
250.853	23.5556	6
250.842	23.5757	6
250.806	23.6389	6
250.783	23.7223	6
250.778	23.8056	6
250.792	23.8889	6
250.825	23.9723	6
250.842	23.9975	6
250.883	24.0556	6
250.925	24.0966	6
250.984	24.1389	6
251.008	24.1549	6
> 9 contour
251.092	24.0041	9
251.175	24.0463	9
251.258	24.046	9
251.342	24.029	9
251.425	23.9771	9
251.43	23.9723	9
251.496	23.8889	9
251.508	23.8382	9
251.519	23.8056	9
251.508	23.7245	9
251.508	23.7223	9
251.471	23.6389	9
251.425	23.5926	9
251.358	23.5556	9
251.342	23.5466	9
251.258	23.5184	9
251.175	23.5216	9
251.118	23.5556	9
251.092	23.57	9
251.016	23.6389	9
251.008	23.6538	9
250.971	23.7223	9
250.961	23.8056	9
250.988	23.8889	9
251.008	23.9176	9
251.051	23.9723	9
251.092	24.0041	9
> 12 contour
251.258	23.9756	12
251.266	23.9723	12
251.342	23.9434	12
251.401	23.8889	12
251.425	23.8214	12
251.432	23.8056	12
251.425	23.7656	12
251.421	23.7223	12
251.351	23.6389	12
251.342	23.6316	12
251.258	23.5906	12
251.175	23.6078	12
251.13	23.6389	12
251.092	23.6715	12
251.054	23.7223	12
251.04	23.8056	12
251.08	23.8889	12
251.092	23.9015	12
251.175	23.9622	12
251.239	23.9723	12
251.258	23.9756	12
> 15 contour
251.175	23.9009	15
251.258	23.9352	15
251.333	23.8889	15
251.342	23.8812	15
251.392	23.8056	15
251.372	23.7223	15
251.342	23.688	15
251.258	23.6438	15
251.175	23.6726	15
251.119	23.7223	15
251.095	23.8056	15
251.16	23.8889	15
251.175	23.9009	15
> 18 contour
251.258	23.8963	18
251.27	23.8889	18
251.342	23.8268	18
251.356	23.8056	18
251.342	23.7626	18
251.319	23.7223	18
251.258	23.6838	18
251.186	23.7223	18
251.175	23.7436	18
251.151	23.8056	18
251.175	23.8341	18
251.242	23.8889	18
251.258	23.8963	18