> 4 contour
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> 8 contour
-8.97067	-49.5203	8
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-8.7966	-49.526	8
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-9.13733	-49.5541	8
-9.054	-49.5303	8
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-8.97067	-49.5203	8
> 12 contour
-8.97067	-49.6537	12
-8.88733	-49.6495	12
-8.804	-49.6626	12
-8.7663	-49.676	12
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-8.96671	-50.026	12
-8.97067	-50.0258	12
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-9.167	-49.926	12
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-9.18161	-49.776	12
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-9.13548	-49.726	12
-9.054	-49.6766	12
-9.05184	-49.676	12
-8.97067	-49.6537	12
> 16 contour
-8.97067	-49.7227	16
-8.88733	-49.7129	16
-8.83811	-49.726	16
-8.804	-49.7341	16
-8.73663	-49.776	16
-8.72067	-49.8045	16
-8.70705	-49.826	16
-8.71738	-49.876	16
-8.72067	-49.88	16
-8.76033	-49.926	16
-8.804	-49.9498	16
-8.88733	-49.9652	16
-8.97067	-49.9612	16
-9.04767	-49.926	16
-9.054	-49.9207	16
-9.09469	-49.876	16
-9.10048	-49.826	16
-9.0721	-49.776	16
-9.054	-49.7612	16
-8.97936	-49.726	16
-8.97067	-49.7227	16
> 20 contour
-8.88733	-49.7577	20
-8.82397	-49.776	20
-8.804	-49.79	20
-8.77945	-49.826	20
-8.79743	-49.876	20
-8.804	-49.8824	20
-8.88733	-49.918	20
-8.97067	-49.9072	20
-9.01016	-49.876	20
-9.02387	-49.826	20
-8.97067	-49.7862	20
-8.94687	-49.776	20
-8.88733	-49.7577	20