> 3 contour
253.267	19.3008	3
253.35	19.3002	3
253.404	19.2969	3
253.434	19.2953	3
253.517	19.2845	3
253.6	19.2671	3
253.684	19.2415	3
253.755	19.2136	3
253.767	19.2092	3
253.85	19.1644	3
253.904	19.1302	3
253.934	19.1103	3
254.012	19.0469	3
254.017	19.0428	3
254.097	18.9636	3
254.1	18.9594	3
254.164	18.8802	3
254.184	18.8498	3
254.218	18.7969	3
254.259	18.7136	3
254.267	18.6934	3
254.291	18.6302	3
254.314	18.5469	3
254.327	18.4636	3
254.334	18.3802	3
254.333	18.2969	3
254.325	18.2136	3
254.309	18.1302	3
254.285	18.0469	3
254.267	18.0026	3
254.251	17.9636	3
254.207	17.8802	3
254.184	17.8447	3
254.152	17.7969	3
254.1	17.7336	3
254.083	17.7136	3
254.017	17.6489	3
253.995	17.6302	3
253.934	17.5811	3
253.881	17.5469	3
253.85	17.5276	3
253.767	17.481	3
253.721	17.4636	3
253.684	17.4491	3
253.6	17.4227	3
253.517	17.4047	3
253.434	17.3934	3
253.35	17.3888	3
253.267	17.3884	3
253.184	17.3992	3
253.1	17.4145	3
253.017	17.438	3
252.95	17.4636	3
252.934	17.4694	3
252.85	17.508	3
252.782	17.5469	3
252.767	17.5559	3
252.684	17.6206	3
252.672	17.6302	3
252.6	17.6973	3
252.585	17.7136	3
252.517	17.7965	3
252.517	17.7969	3
252.461	17.8802	3
252.434	17.933	3
252.418	17.9636	3
252.384	18.0469	3
252.36	18.1302	3
252.35	18.1822	3
252.344	18.2136	3
252.335	18.2969	3
252.333	18.3802	3
252.341	18.4636	3
252.35	18.5137	3
252.356	18.5469	3
252.378	18.6302	3
252.41	18.7136	3
252.434	18.7612	3
252.451	18.7969	3
252.504	18.8802	3
252.517	18.8969	3
252.57	18.9636	3
252.6	18.9954	3
252.655	19.0469	3
252.684	19.0716	3
252.76	19.1302	3
252.767	19.1356	3
252.85	19.1831	3
252.917	19.2136	3
252.934	19.2212	3
253.017	19.2523	3
253.1	19.275	3
253.184	19.2897	3
253.24	19.2969	3
253.267	19.3008	3
> 6 contour
253.184	18.7153	6
253.267	18.7468	6
253.35	18.745	6
253.434	18.733	6
253.485	18.7136	6
253.517	18.7026	6
253.6	18.6514	6
253.625	18.6302	6
253.684	18.5625	6
253.695	18.5469	6
253.737	18.4636	6
253.753	18.3802	6
253.75	18.2969	6
253.729	18.2136	6
253.684	18.1336	6
253.682	18.1302	6
253.608	18.0469	6
253.6	18.0404	6
253.517	17.9863	6
253.448	17.9636	6
253.434	17.9581	6
253.35	17.9428	6
253.267	17.9417	6
253.214	17.9636	6
253.184	17.975	6
253.1	18.0155	6
253.06	18.0469	6
253.017	18.0889	6
252.983	18.1302	6
252.942	18.2136	6
252.934	18.2511	6
252.921	18.2969	6
252.919	18.3802	6
252.934	18.4441	6
252.937	18.4636	6
252.974	18.5469	6
253.017	18.6011	6
253.044	18.6302	6
253.1	18.6759	6
253.18	18.7136	6
253.184	18.7153	6
> 9 contour
253.267	18.5837	9
253.35	18.5869	9
253.434	18.5651	9
253.462	18.5469	9
253.517	18.5043	9
253.551	18.4636	9
253.584	18.3802	9
253.58	18.2969	9
253.542	18.2136	9
253.517	18.1849	9
253.441	18.1302	9
253.434	18.1258	9
253.35	18.0916	9
253.267	18.0992	9
253.218	18.1302	9
253.184	18.1527	9
253.125	18.2136	9
253.1	18.2765	9
253.091	18.2969	9
253.086	18.3802	9
253.1	18.4176	9
253.115	18.4636	9
253.184	18.5363	9
253.203	18.5469	9
253.267	18.5837	9
> 12 contour
253.267	18.4975	12
253.35	18.5155	12
253.434	18.4835	12
253.456	18.4636	12
253.506	18.3802	12
253.502	18.2969	12
253.438	18.2136	12
253.434	18.2098	12
253.35	18.161	12
253.267	18.1835	12
253.228	18.2136	12
253.184	18.2599	12
253.16	18.2969	12
253.155	18.3802	12
253.184	18.4288	12
253.218	18.4636	12
253.267	18.4975	12
> 15 contour
253.35	18.4649	15
253.353	18.4636	15
253.434	18.4213	15
253.464	18.3802	15
253.457	18.2969	15
253.434	18.2676	15
253.353	18.2136	15
253.35	18.2117	15
253.345	18.2136	15
253.267	18.2511	15
253.222	18.2969	15
253.218	18.3802	15
253.267	18.4297	15
253.346	18.4636	15
253.35	18.4649	15