> 2 contour
120.933	50.1017	2
121.017	50.0832	2
121.09	50.0678	2
121.1	50.0669	2
121.183	50.047	2
121.267	49.9939	2
121.278	49.9845	2
121.339	49.9012	2
121.338	49.8178	2
121.299	49.7345	2
121.267	49.7059	2
121.183	49.6569	2
121.155	49.6512	2
121.1	49.6299	2
121.017	49.6156	2
120.933	49.6023	2
120.85	49.6482	2
120.829	49.6512	2
120.767	49.6623	2
120.705	49.7345	2
120.683	49.7753	2
120.659	49.8178	2
120.664	49.9012	2
120.683	49.9304	2
120.722	49.9845	2
120.767	50.019	2
120.85	50.0579	2
120.876	50.0678	2
120.933	50.1017	2
> 4 contour
120.933	50.0227	4
121.017	50.0161	4
121.1	49.9845	4
121.1	49.9845	4
121.183	49.9274	4
121.215	49.9012	4
121.217	49.8178	4
121.183	49.7579	4
121.154	49.7345	4
121.1	49.7142	4
121.017	49.6922	4
120.933	49.6977	4
120.864	49.7345	4
120.85	49.7409	4
120.78	49.8178	4
120.788	49.9012	4
120.85	49.9656	4
120.875	49.9845	4
120.933	50.0227	4
> 6 contour
120.933	49.9595	6
121.017	49.9706	6
121.1	49.9413	6
121.146	49.9012	6
121.158	49.8178	6
121.1	49.7625	6
121.017	49.7401	6
120.933	49.7602	6
120.85	49.8025	6
120.836	49.8178	6
120.85	49.8935	6
120.853	49.9012	6
120.933	49.9595	6
> 8 contour
121.017	49.9392	8
121.095	49.9012	8
121.1	49.8892	8
121.117	49.8178	8
121.1	49.8016	8
121.017	49.7658	8
120.933	49.813	8
120.924	49.8178	8
120.933	49.8419	8
120.946	49.9012	8
121.017	49.9392	8