> 3 contour
15.9677	51.6936	3
16.051	51.7542	3
16.1343	51.7571	3
16.2177	51.7563	3
16.301	51.7464	3
16.3843	51.7483	3
16.4567	51.684	3
16.4677	51.676	3
16.543	51.6007	3
16.5419	51.5173	3
16.5306	51.434	3
16.4709	51.3507	3
16.4677	51.349	3
16.3843	51.3063	3
16.301	51.2961	3
16.2177	51.2929	3
16.1343	51.2798	3
16.051	51.2858	3
15.983	51.3507	3
15.9677	51.3631	3
15.8913	51.434	3
15.8843	51.4456	3
15.8432	51.5173	3
15.8608	51.6007	3
15.8843	51.6193	3
15.9572	51.684	3
15.9677	51.6936	3
> 6 contour
16.051	51.6293	6
16.1343	51.6742	6
16.2177	51.6799	6
16.301	51.6628	6
16.3843	51.6117	6
16.397	51.6007	6
16.4265	51.5173	6
16.4068	51.434	6
16.3843	51.4153	6
16.301	51.3773	6
16.2177	51.3671	6
16.1343	51.3665	6
16.051	51.3925	6
16.006	51.434	6
15.9786	51.5173	6
16.0274	51.6007	6
16.051	51.6293	6
> 9 contour
16.1343	51.6157	9
16.2177	51.649	9
16.301	51.6164	9
16.324	51.6007	9
16.3679	51.5173	9
16.3292	51.434	9
16.301	51.4176	9
16.2177	51.4028	9
16.1343	51.4021	9
16.0751	51.434	9
16.051	51.479	9
16.0339	51.5173	9
16.051	51.5412	9
16.1135	51.6007	9
16.1343	51.6157	9
> 12 contour
16.2177	51.6181	12
16.2559	51.6007	12
16.301	51.5741	12
16.3402	51.5173	12
16.301	51.4586	12
16.2177	51.4367	12
16.1343	51.4428	12
16.0875	51.5173	12
16.1343	51.5627	12
16.1818	51.6007	12
16.2177	51.6181	12