> 4 contour
167.759	-18.9449	4
167.842	-18.9278	4
167.926	-18.9228	4
168.009	-18.9391	4
168.057	-18.961	4
168.092	-18.975	4
168.174	-19.0443	4
168.176	-19.0464	4
168.239	-19.1276	4
168.259	-19.205	4
168.261	-19.211	4
168.26	-19.2943	4
168.259	-19.298	4
168.237	-19.3776	4
168.18	-19.461	4
168.176	-19.4652	4
168.092	-19.5373	4
168.076	-19.5443	4
168.009	-19.575	4
167.926	-19.5903	4
167.842	-19.5871	4
167.759	-19.5683	4
167.727	-19.5443	4
167.676	-19.4945	4
167.642	-19.461	4
167.592	-19.3812	4
167.59	-19.3776	4
167.562	-19.2943	4
167.564	-19.211	4
167.592	-19.1276	4
167.592	-19.1272	4
167.653	-19.0443	4
167.676	-19.0217	4
167.737	-18.961	4
167.759	-18.9449	4
> 8 contour
167.759	-19.1156	8
167.842	-19.0657	8
167.926	-19.0604	8
168.009	-19.0928	8
168.052	-19.1276	8
168.092	-19.1914	8
168.103	-19.211	8
168.103	-19.2943	8
168.092	-19.3128	8
168.059	-19.3776	8
168.009	-19.4218	8
167.926	-19.4548	8
167.842	-19.4436	8
167.759	-19.3903	8
167.749	-19.3776	8
167.706	-19.2943	8
167.706	-19.211	8
167.749	-19.1276	8
167.759	-19.1156	8
> 12 contour
167.926	-19.1209	12
167.938	-19.1276	12
168.009	-19.1669	12
168.046	-19.211	12
168.046	-19.2943	12
168.009	-19.343	12
167.969	-19.3776	12
167.926	-19.4062	12
167.856	-19.3776	12
167.842	-19.3715	12
167.772	-19.2943	12
167.772	-19.211	12
167.842	-19.1351	12
167.89	-19.1276	12
167.926	-19.1209	12
> 16 contour
167.842	-19.1862	16
167.926	-19.1471	16
168.002	-19.211	16
168.003	-19.2943	16
167.926	-19.3683	16
167.842	-19.3201	16
167.819	-19.2943	16
167.819	-19.211	16
167.842	-19.1862	16