[{"from": "human", "value": "Write number-averaged molecular weight of given SMILES at room temperature and atmospheric pressure. ->  CC1=C(F)C(F)=C(C2=CC(CC(CCCC)CCCCCC)=C(C3=C(OCC(CCCCC)CCC)C=C(C)S3)S2)C4=NSN=C41\n"}, {"from": "gpt", "value": " 53.8\n"}]