In Year 4, VegaCorp, a C-Corporation, has a capital loss of $15,000 and a taxable income of $120,000 before considering any capital gains or losses. In the previous three years, the corporation had capital gains of $3,000 in Year 1, $4,000 in Year 2, and $5,000 in Year 3. VegaCorp elects to carry back the capital loss. What is the total amount of tax savings VegaCorp can realize by carrying back the capital losses to the previous years