Calculate the change in the oxidation state of sulfur

Question

If the product is SO₄^2- and the reactant isSO₃^2-, calculate the change in the oxidationstate of sulfur (oxidation state of sulfur in product minus theoxidation state of sulfur in the reactant). Enter the sign and magnitude of the result, and separated by a comma, also enter O orR to indicate whether sulfur is oxidized (O) or reduced (R).Example: -2,O.