> 2 contour -Z2
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> 2 contour -Z2
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> 2 contour -Z2
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> 2 contour -Z2
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> 4 contour -Z4
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> 4 contour -Z4
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> 6 contour -Z6
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> 8 contour -Z8
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> 10 contour -Z10
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> 12 contour -Z12
-171.4704	52.0757834977	12
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