> 4 contour
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> 4 contour
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> 8 contour
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> 12 contour
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> 16 contour
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> 20 contour
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> 24 contour
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-179.947	-30.9912	24
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-179.741	-30.8412	24
-179.696	-30.8201	24
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-179.612	-30.7897	24
> 28 contour
-179.362	-31.2835	28
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-179.446	-31.7968	28
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-179.535	-31.7412	28
-179.59	-31.6912	28
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-179.614	-31.5412	28
-179.621	-31.4912	28
-179.612	-31.477	28
-179.585	-31.4412	28
-179.562	-31.3912	28
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-179.475	-31.3412	28
-179.446	-31.3258	28
-179.384	-31.2912	28
-179.362	-31.2835	28
> 28 contour
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-179.279	-31.5738	28
-179.362	-31.5669	28
-179.429	-31.5412	28
-179.362	-31.5171	28