A 22.109 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put into a combustion analysis apparatus, yielding 39.386 mg of carbon dioxide and 16.123 mg of water. In another experiment, 48.151 mg of the compound is reacted with excess oxygen to produce 20.81 mg of sulfur dioxide. Add subscripts to the formula provided to correctly identify the empirical formula of this compound. Do not change the order of the elements.