You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-12,15-diol by IUPAC nomenclature, provide its molecular formula.
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C19H32O2
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