You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (6S,10R)-2-chloro-6,10-bis(5-chloro-1H-indol-3-yl)-5,6,7,8,9,10-hexahydrocyclohepta[b]indole into molecular formula.
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C29H22Cl3N3
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