You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 6-[(5-cyanopyrazin-2-yl)amino]-4-[[(2R)-morpholin-2-yl]methylamino]-N-(trifluoromethyl)pyridazine-3-carboxamide into molecular formula.
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C16H16F3N9O2
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