Atoms and Nuclei

If the binding energy per nucleon in $${}_3^7Li$$ and $${}_2^4He$$ nuclei are $$5.60$$ $$MeV$$ and $$7.06$$ $$MeV$$ respectively, then in the reaction $p + {}_3^7Li \to 2\,{}_2^4He$ energy of proton must be