Nuclei (Q value)

Consider the following nuclear reaction: U-238 -> Th-234 + He-4. Take the masses of U-238, Th-234 and He-4 as 238.050 u, 234.043 u and 4.003 u respectively. The Q value for the reaction, in keV, is: [Given: 1 u = 931.5 MeV c^-2]