> 3 contour
16.038	51.832	3
16.1213	51.8511	3
16.2047	51.8471	3
16.288	51.8312	3
16.3478	51.8075	3
16.3713	51.7998	3
16.4547	51.7313	3
16.4601	51.7242	3
16.4735	51.6408	3
16.4547	51.597	3
16.4466	51.5575	3
16.3713	51.4943	3
16.3013	51.4742	3
16.288	51.4684	3
16.2047	51.4489	3
16.1213	51.4469	3
16.038	51.4641	3
16.0225	51.4742	3
15.9547	51.5071	3
15.9116	51.5575	3
15.898	51.6408	3
15.9172	51.7242	3
15.9547	51.7675	3
16.001	51.8075	3
16.038	51.832	3
> 6 contour
16.1213	51.7723	6
16.2047	51.7834	6
16.288	51.7557	6
16.3347	51.7242	6
16.3713	51.6605	6
16.3811	51.6408	6
16.3713	51.625	6
16.3333	51.5575	6
16.288	51.5245	6
16.2047	51.511	6
16.1213	51.5212	6
16.0614	51.5575	6
16.038	51.6033	6
16.0181	51.6408	6
16.038	51.7092	6
16.042	51.7242	6
16.1213	51.7723	6
> 9 contour
16.2047	51.7431	9
16.2457	51.7242	9
16.288	51.6999	9
16.3358	51.6408	9
16.288	51.5771	9
16.2109	51.5575	9
16.2047	51.5562	9
16.1987	51.5575	9
16.1213	51.5847	9
16.0802	51.6408	9
16.1213	51.7112	9
16.1408	51.7242	9
16.2047	51.7431	9