You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1,10-dimethyl-1-piperidin-1-yl-3,4-dihydro-[1,4]oxazino[4,3-a]indole is given. What is its corresponding molecular formula?
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C18H24N2O
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