You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[3-(4-fluorophenyl)-3,3a,4,5-tetrahydrobenzo[g]indazol-2-yl]-2-[[5-(furan-2-yl)-4-phenyl-1,2,4-triazol-3-yl]sulfanyl]ethanone into molecular formula.
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C31H24FN5O2S
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