What is the total profit of "Memorex Froggy Flash Drive 8 GB in south superstore?
"Memorix Froggy Flash Drive 8 GB" is the "Product Name"
SELECT SUM(T1.Profit) FROM south_superstore AS T1 INNER JOIN product AS T2 ON T1.`Product ID` = T2.`Product ID` GROUP BY T2.`Product Name` = 'Memorix Froggy Flash Drive 8 GB'