> 2 contour -Z2
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> 4 contour -Z4
-155.6939	57.624733427	4
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-155.6939	57.624733427	4
> 6 contour -Z6
-155.7189	57.5924518243	6
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> 8 contour -Z8
-155.6939	57.5804536703	8
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-155.6939	57.5804536703	8
> 10 contour -Z10
-155.6689	57.5709761267	10
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-155.6189	57.5709751382	10
-155.607321954	57.566771875	10
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-155.6439	57.509244026	10
-155.6689	57.5122261717	10
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-155.6939	57.5554279422	10
-155.680481818	57.566771875	10
-155.6689	57.5709761267	10
> 12 contour -Z12
-155.6689	57.5437961774	12
-155.6439	57.5501616098	12
-155.6189	57.5437938461	12
-155.61638829	57.5416	12
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-155.671414631	57.5416	12
-155.6689	57.5437961774	12