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spirals by wtaskew (10 subjects)
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Favorites by SUMO_2011 (10 subjects)
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Favorites by FoxtrotDelta (10 subjects)
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Favorites by pseudoprime (10 subjects)
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Favorites by Tsiolkowsky (10 subjects)
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Favorites by Greymalkimn (10 subjects)
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Favorites by garrett_cw (10 subjects)
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Favorites by Dmitriy77 (1 subject)
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Favorites by beccys-trilogy (8 subjects)
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Favorites by aaron1138 (10 subjects)