> 2 contour -Z2
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> 4 contour -Z4
-175.8568	51.682637064	4
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-175.7818	51.687158494	4
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-175.7318	51.6754984941	4
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-175.8318	51.4962467464	4
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-175.8818	51.5079439811	4
-175.9068	51.5186750747	4
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-175.9318	51.5366536492	4
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-175.9318	51.6468787028	4
-175.923714596	51.6538	4
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-175.8818	51.6754979569	4
-175.869628944	51.67864	4
-175.8568	51.682637064	4
> 6 contour -Z6
-175.8318	51.6597482277	6
-175.8068	51.6617956991	6
-175.7818	51.6597485229	6
-175.759274622	51.6538	6
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-175.7818	51.5236575113	6
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-175.854323358	51.6538	6
-175.8318	51.6597482277	6
> 8 contour -Z8
-175.8568	51.632448386	8
-175.8318	51.6411605803	8
-175.8068	51.6436834625	8
-175.7818	51.6411609358	8
-175.7568	51.6324492538	8
-175.750709408	51.62896	8
-175.7318	51.6105557801	8
-175.726791119	51.60412	8
-175.72681427	51.57928	8
-175.7318	51.5728815248	8
-175.750754934	51.55444	8
-175.7568	51.5509732401	8
-175.7818	51.5422446049	8
-175.8068	51.5397168586	8
-175.8318	51.5422449747	8
-175.8568	51.5509741071	8
-175.862843424	51.55444	8
-175.8818	51.5728837353	8
-175.886783936	51.57928	8
-175.88680709	51.60412	8
-175.8818	51.6105535805	8
-175.862888949	51.62896	8
-175.8568	51.632448386	8
> 10 contour -Z10
-175.8568	51.609159979	10
-175.8318	51.623891553	10
-175.8068	51.6280559584	10
-175.7818	51.6238921216	10
-175.7568	51.6091614794	10
-175.751655188	51.60412	10
-175.751670354	51.57928	10
-175.7568	51.5742547117	10
-175.7818	51.5595142641	10
-175.8068	51.5553447373	10
-175.8318	51.5595148611	10
-175.8568	51.5742561937	10
-175.861928018	51.57928	10
-175.861943168	51.60412	10
-175.8568	51.609159979	10
> 12 contour -Z12
-175.8318	51.605231572	12
-175.8068	51.6104034688	12
-175.7818	51.605232301	12
-175.780042039	51.60412	12
-175.780048412	51.57928	12
-175.7818	51.5781713915	12
-175.8068	51.5729970055	12
-175.8318	51.5781721555	12
-175.833550313	51.57928	12
-175.833556735	51.60412	12
-175.8318	51.605231572	12