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 [(3aS,6aR)-2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl]-(2,2-dioxo-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazin-9-yl)methanone is given. What is its corresponding molecular formula?
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C14H18N4O3S
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