You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 11-methyl-8-methylidene-10-N-(2-piperidin-1-ylethyl)-1,14-diazatetracyclo[7.6.1.02,7.013,16]hexadeca-2(7),3,5,9,11,13(16),14-heptaene-5,10-diamine into molecular formula.
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C23H27N5
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